A-1 Miller's Performance Enterprises

Online Catalog
Offering Quality Products and Professional Workmanship at Reasonable Prices!
We've always been a "green" company! We reduce, reuse, recycle and restore when others just "throw it away."
Engine Rebuild Parts, Engine Rebuilds, Build-ups, Exhaust Header Pipe Kits & Machine Shop Services

NOTE: To place an order, please call or send an email with a description of the parts or services you need. Because as of right now, we're not set up to accept orders through our web sites.

NOTE: Everything in this web site are still available. We only update when we make a change in a listing of a part. If a part is no longer available, we mention this instead. Prices are subject to change without notice. We're in the lawn mower/small repair business too, so we can get a lot of other parts that's not listed on our web sites. Just let us know what you need and we'll see if we can get it at a reasonable price. And the condition of these parts are brand new, first line product. No seconds or blems being pawned off on unsuspecting customers. Optimized for 1024 x 768 screen resolution. To search for a word or phrase in this Web page, with Microsoft Internet Explorer 6.x, press CTRL+F to open the Find dialog box.


This site was last updated 3/17/10. (Right click your mouse and click on Refresh.) Scroll down, or click here:


New Internal Engine Rebuild Parts for Kohler K-Series and Magnum Engines -
NOTE: All parts listed below are NEW except where specified. And don't be leery of the low prices. The engine parts we sell are from Stens and Rotary. They're of very high quality and priced lower than genuine Kohler parts. They're the same parts we've installed in our customer's lawn and garden equipment and our own pulling tractors for years since 1982 and we've never had any complaints or problems with them.

Individual OEM Replacement Engine Gaskets, Oil Seals and Complete Gasket Sets -
Click Here For Carburetor and Fuel System Gaskets and Parts.
Cylinder head gasket for 7hp and 8hp Kohler K-series and Magnum flathead engines. OEM replacement; replaces Kohler part # 41-041-05, 41-041-10; .050" compressed thickness; included in overhaul gasket set below. $6.50 each, plus shipping & handling.
Cylinder head gasket for 10hp, 12hp & 14hp K-series and Magnum flathead engines. OEM replacement; replaces Kohler part # 237658, 47-041-10, 47-041-15; .050" compressed thickness; included in overhaul gasket set below. $9.50 each, plus shipping & handling.
Cylinder head gasket for 16hp K-series and Magnum flathead engines. Kohler part # 45-041-16, 45-041-17, 45-052-01; .050" compressed thickness; included in overhaul gasket set below. $13.00 each, plus shipping & handling.
Head gasket for KT17, KT19, KT21 (K-series), M18 & M20 (Magnum) twin opposed cylinder Kohler engines. Replaces Kohler #52-041-18. $12.00 each, plus shipping & handling.
Valve cover (crankcase breather) gaskets for 7hp through 16hp and 18hp OHV K-series and Magnum flathead engines. Replaces Kohler parts # 230048, # 235048 & 275144S; included in overhaul gasket set below. $1.50 per set of two gaskets. Please specify engine size.
Cam gear cover gasket for 10-16hp flathead and 18hp OHV K-series and Magnum flathead Kohler engines. Replaces Kohler part # 235025, 235025-S; included in overhaul gasket set below. $2.00 each, plus shipping & handling.
Point cover gasket for 4hp-16hp flathead, 18hp OHV K-series and Magnum flathead engines. Replaces Kohler part # 220174, 524111, 5204111-S; included in overhaul gasket set below. $1.75 each, plus shipping & handling.
Oil pan gasket for 7hp and 8hp Kohler K-series and Magnum flathead engines. Replaces Kohler part # 41-041-03; included in overhaul gasket set below. Unlike the 10-16hp engines, all 7hp and 8hp Kohler engines are wide base blocks. $4.50 each, plus shipping & handling.
Oil pan gasket for 10hp-16hp flathead, 18hp OHV K-series and Magnum flathead engines. Please specify if you have a wide or narrow base block or oil pan. Click here to determine if your engine is a wide base or narrow base block. Replaces Kohler part # 235353, 235353-S, 47-041-07, 47-041-07-S [narrow pan]; 235057, 235057-S [wide pan], included in overhaul gasket set below. $3.50 each, plus shipping & handling.
Bearing plate gaskets for 7 & 8hp flathead K-series & Magnum Kohler engines. NOTE: Comes in the thin (.015" thickness) sizes only. Included in overhaul gasket set below. And several gaskets may be required to obtain the correct crankshaft end-play.
  • .015" thickness. (Kohler part # 235070, 235070-S)
  • $3.00 each, plus shipping & handling.
Bearing plate gaskets for 10hp-16hp flathead and 18hp OHV K-series Kohler engines. NOTE: Several thin and thick gaskets are included in overhaul gasket set below. And several gaskets may be required to obtain the correct crankshaft end-play. Available in:
  • .015" thickness. (Kohler part # 235070, 235070-S)
  • .032" thickness. (Kohler part # 235757, 235757-S)
  • $2.00 each, plus shipping & handling. Please specify which thickness you need.
Crankshaft Oil Seals for 7hp and 8hp Kohler K-series and Magnum flathead engines. Included in overhaul gasket set below.
  • Flywheel end (Replaces Kohler part # X-583-1) $3.75each, plus shipping & handling.
  • PTO end (Replaces Kohler part # X-583-2) $3.75 each, plus shipping & handling.

Crankshaft Oil Seals for 10hp-16hp flathead, 18hp OHV K-series and Magnum flathead engines. Included in overhaul gasket set below.

  • Flywheel End (Replaces Kohler part # 47-032-46) $5.50 each, plus shipping & handling.
  • PTO End (Replaces Kohler part # 47-032-07) $5.00 each, plus shipping & handling.
Complete gasket set w/oil seals for cast iron block Kohler 4hp engine models K90, K91. Fits multiple K91 models. Genuine Kohler Part. $46.00 each, plus shipping & handling. Complete gasket set w/oil seals for cast iron block Kohler K-series K141, K161 (7hp) and K181 (8hp) flathead engines. Replaces Kohler part # 41-755-06. NOTE: These gaskets will fit the single cylinder Magnum engines also, but silicone sealer must be used on the end of the cam pin between the engine block and bearing plate. $30.00 each, plus shipping & handling.
Complete gasket set w/oil seals for cast iron block Kohler K-series 10-16hp flathead engines. Replaces Kohler part # 47-755-08, 47-004-01 (10-14hp). Replaces Kohler part # 47-755-04 (16hp). NOTE: These gaskets will also fit the single cylinder Magnum engines, but silicone sealant must be used on the end of the cam pin between the engine block and bearing plate. $35.00 each, plus shipping & handling.
Complete gasket set w/oil seals for the cast iron block Kohler K-series K361/18hp OHV engine. Replaces: Kohler 4500405, 4575506-S. $42.00 each, plus shipping & handling. Complete gasket set w/oil seals for Kohler opposed twin cylinder engine models KT17, 19 & 21hp, and Magnum opposed twin cylinder engine models M18, M20, MV18 & MV20. Replaces: Kohler 52 755 10-S, 52 755 92-S, 52 755 93-S, 52 755 94-S, 25 755 37-S. $60.00 each, plus shipping & handling.
Magnetic Drain Plug. Has 3/8" square head with 3/8" NPT threads. Universal fit. Helps trap metallic pieces inside crankcase in unfiltered engines (no oil pump/filter) to reduce engine wear. $3.50 each, plus shipping & handling. Oil Drain Valve. Has 3/8" NPT threads. Universal fit. Easy to use! NOTE: Valve has left-hand threads. $7.00 each, plus shipping & handling.
More parts to be added later. If you need something that's not listed here, please contact us and we'll see if we can get it at a reasonable price. Please contact us if you're interested in any of the above parts.

New OEM Replacement Ring Sets and Piston/Rings Assemblies -
OEM-type ring set for Kohler 4hp engine models K90, K91. Also replaces BRIGGS & STRATTON Part # 294232, 295657, KOHLER 220801, 220801S, CLINTON 233112500, 233122500. Cylinder Diameter: 2.375". Available in standard size only. Made of high grade cast iron for durability.
  • $15.00 each set, plus shipping & handling.


OEM-type ring set for 7hp (K161) and 8hp (K181) Kohler K-series flathead engines with the newer 2-15/16" bore. The top ring is a proven cast design with a chrome edge for long life, proper lubrication and scuff-free service. The 2nd ring is a reverse torsion type for sealing. Finally, the oil ring is the famous 'Flex-Vent' 3-piece design, which exerts uniform pressure on the cylinder wall while providing 200% more drainage capacity than conventional one-piece oil rings. Available in STD, .010", .020" and .030" oversizes. Made of high grade cast iron for durability. NOTE: The model K141 Kohler engine will need to be bored to 2.9375" to accept these new style rings because the rings for the 2-7/8" bore are no longer available. And these rings will not fit Mahle pistons that originally come in the Kohler Magnum engines.

  • STD. size: $35.00 each set (for one piston).
  • .010", .020" and .030" oversizes: $45.00 each set (for one piston).

OEM-type ring set for 10hp-16hp and 18hp OHV Kohler K-series flathead engines. Same specs as above. Available in STD, .010", .020" and .030" oversizes. Made of high grade cast iron for durability. NOTE: These rings are made for OEM-type Kohler pistons only. They will not fit Mahle pistons that originally come in the Kohler Magnum engines, or high performance aftermarket pistons (Arias, JE, etc.)

  • 10hp (K241) STD size: $30.00 each set (for one piston).
    • .010", .020" and .030" oversizes: $40.00 each set (for one piston).
  • 12hp (K301) STD size: $35.00 each set (for one piston).
    • .010", .020" and .030" oversizes: $45.00 each set (for one piston).
  • 14hp (K321) STD and .010" each set: $40.00 each set (for one piston).
    • .020" and .030" oversizes: $50.00 each set (for one piston).
  • 16hp (K341) and 18hp (K361) STD, .010", .020" and .030" oversizes: $35.00 each set (for one piston).

OEM-type ring set for Kohler flathead engine models KT17, KT17II, M18, M20, MV16, MV18 & MV20. Replaces Kohler: 52-108-01, 52-108-09-S. Available only in standard size. Made of high grade cast iron for durability.

  • $25.00 each set (for one piston).
OEM-type piston, wrist pin, retaining clips and OEM-type ring set for Kohler K-series and Magnum 7hp (K161) and 8hp (K181/M8) cat iron block flathead engines with a 2-15/16" bore. Rings are made of cast iron; top ring has a chrome edge. Available in STD, .010", .020" and .030" oversizes. NOTE: The model K141 Kohler engine will need to be bored to 2.9375" (2-15/16") to accept this bigger piston and rings because the piston/rings for the 2-7/8" bore are no longer available. And being the wrist pin is centered, this piston can be installed in either direction. $50.00 each, plus shipping & handling.


OEM-type piston, pin, clips and OEM-type ring set for Kohler K-series and Magnum 10hp (K241/M10), 12hp (K301/M12) and 14hp (K321/M14) cast iron block flathead engines. Rings are made of cast iron; top ring has a chrome edge. Available in STD, .010", .020" and .030" oversizes. Compression height: 10hp - 1.63"; 12hp & 14hp - 1.7". And being the wrist pin is centered, this piston can be installed in either direction. $50.00 each, plus shipping & handling.


OEM-type piston, pin, clips and OEM-type ring set for Kohler and Magnum 16hp K341/M16 cat iron block flathead engines and Kohler K-series 18hp K361 OHV single cylinder engine. Rings are made of cast iron; top ring has a chrome edge. Available in STD, .010", .020" and .030" oversizes. Compression height: 1.7". Wrist pin is offset to reduce piston slap. Therefore, piston installs with notch towards flywheel. $80.00 each, plus shipping & handling.


NOTE: High-quality OEM-type ring sets, pistons and piston/rings assemblies are also available for other makes & models of small gas engines. And the piston assemblies that we sell will work with a stock connecting rod and crankshaft without the need for rebalancing.

And always use a billet connecting rod of the correct length with an aftermarket piston (Arias or JE) that has the right compression height. These two parts must be matched for the piston to come flush with the top of the engine block, or have a few thousands of an inch pop out. If using an OEM piston and rod, these parts will not interchange with a longer-than-stock billet rod or with an OEM-type of piston of a different compression height, and vice-versa.

NOTE - We can get complete engine rebuild kits, but a kit cost us more than if we were to order the parts individually. So please email us or call us with a list of which parts you need, and we'll get back to you with a total including shipping & handling. And if you need a part or parts that's not listed here or for other make and model of engines, please contact us and we'll see if we can get it at a reasonable price. Please contact us if you're interested in any of the above parts or items.

New and Used OEM Replacement Connecting Rods -
IMPORTANT! Upon installation of a connecting rod in a Kohler engine, the oil hole in the cap faces toward the camshaft! There's "match marks" on both the rod and rod cap. They MUST be aligned or "matched up" so the big end of the rod forms a perfect circle around the crank journal when installed. Otherwise, if the cap is installed backwards, the "perfect circle" will be oblong or "egg-shaped," which will bind on the crank journal. And DO NOT over-tighten the rod bolts or nuts! If the threads strip out in a rod, then perhaps a longer grade 8 fine thread bolt can be installed in reverse to serve as a stud (the rod will need to be machined for head bolt clearance) and use a grade 8 nut. If this cannot be done, then the rod is scrap metal.
8hp Connecting Rod -

New STD size 8hp (K181 & M8) K-series and Magnum flathead engine connecting rod. Replaces Kohler part # 41-067-10. This is a plain aluminum bearing surface rod. Bearing inserts are not available for this particular rod.

  • Standard size: $32.00 each, plus shipping & handling.
  • .010" undersize: (no bearing inserts) $35.00 each, plus shipping & handling.
10hp Connecting Rod -

New STD size connecting rod for 10hp (K241, M10) K-series and Magnum flathead engine. Replaces Kohler part # 47-067-13; comes with a long dipper. Strong rod. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.558" length.

  • Standard size: $35.00 each, plus shipping & handling.
  • .010" undersize: (no bearing inserts) $48.00 each, plus shipping & handling.

Used STD size connecting rod for 10hp (K241, M10) K-series and Magnum flathead engine. Replaces Kohler part # 47-067-13; comes with a long dipper. Strong rod. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.558" length.

  • $20.00 each, plus shipping & handling. (When available.)


12hp and 14hp Connecting Rods -

New "one color" connecting rod for 12hp (K301, M12) and 14hp (K321, M14) Kohler K-series and Magnum flathead engines. Replaces Kohler part # A-237344, 45-067-09, 45-067-09S; comes with a long dipper and 3/8" thread-in bolts. Strong rod. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.3" length.

  • STD $40.00 each, plus shipping & handling.
  • .010" $45.00 each, plus shipping & handling.

Used "one color" STD size Genuine OEM Kohler connecting rod for 12hp (K301, M12) and 14hp (K321, M14) Kohler K-series and Magnum flathead engines. Kohler part # A-237344, 45-067-09, 45-067-09S. Comes with long dipper and 3/8" bolts or studs w/"Posi Lock" nuts. Strong rod. These were in stock engines that never exceeded 3,600 rpm for a long period of time. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.3" length.

  • $30.00 each, plus shipping & handling. (When available.)

Used "two color" STD size Genuine OEM Kohler connecting rod for 12hp (K301, M12) and 14hp (K321, M14) Kohler K-series and Magnum flathead engines. Genuine Kohler part # A-237344, 45-067-09, 45-067-09S; comes with a long dipper and 3/8" thread-in bolts, good for up to 4,000 rpm. These were in stock engines that never exceeded 3,600 rpm for a long period of time. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.3" length.

  • $20.00 each, plus shipping & handling. (When available.)


16hp Connecting Rod

New 16hp (K341, M16) Kohler K-series and Magnum flathead engine connecting rod. This particular rod is narrow at the wrist pin so it'll fit inside the 16hp piston. Replaces Kohler part # 45-067-22, 45-067-22S; comes with a long dipper and 3/8" thread-in bolts. Strong rod. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.3" length.

  • STD $50.00 each, plus shipping & handling.
  • .010" $55.00 each, plus shipping & handling.

Used 16hp (K341, M16) Kohler K-series and Magnum flathead engine connecting rod. This particular rod is narrow at the wrist pin so it'll fit inside the 16hp piston. Kohler part # 45-067-22, 45-067-22S. Comes with long dipper and and 3/8" bolts or studs w/"Posi Lock" nuts. Strong rod. These were in stock engines that never exceeded 3,600 rpm for a long period of time. Comes with split lockwashers under head bolts. This is a plain aluminum bearing surface rod, but we can bore rod and install bearings if you wish. 5.3" length.

  • $25.00 each, plus shipping & handling. (When available.)
Machine Work for Connecting Rod -
  • Bore and notch 10hp-18hp cast iron block single cylinder Kohler connecting rods for installation of bearing inserts: $25.00 labor, plus shipping & handling.
  • Clevite 77 Bearing Inserts Clevite 77 bearing inserts available in STD, .010", .020" undersizes.. $15.00 each, plus shipping & handling.
  • Federal Mogul bearing inserts available in .030" undersize. $25.00 each, plus shipping & handling.
    • Please let us know if you want the bearing inserts centered in the bore of the rod (piston flush with top of block) or offset .020" or more (up to .125" at no extra charge) to pop the piston out of the cylinder to raise the compression slightly and help improve air flow within the combustion chamber for more power and torque. The bearing inserts we install in Kohler connecting rods can be used for ordinary yard work or pulling competition.


More parts to be added later. If you need something that's not listed here, please contact us and we'll see if we can get it at a reasonable price. Please contact us if you're interested in any of the above parts or items.

New OEM Replacement Valves and Guides -
New intake valve for models K141, K161, K181, M8, 7hp and 8hp Kohler K-series and Magnum flathead cast iron engines. Head diameter: 1-3/8"; length 4.065"; stem: .309"; face angle: 45°. Replaces Kohler part # 230008, 230008-S. $16.00 each, plus shipping & handling.

New exhaust valve for models K141, K161, K181, M8, 7hp and 8hp Kohler K-series and Magnum flathead cast iron engines. Head diameter: 1-1/8"; length 4.065"; stem: .309"; face angle: 45°. Heat-treated hardened steel. Replaces Kohler part # 230710. $20.00 each, plus shipping & handling.


New intake valve for 10hp thru 16hp models K241-K341 K-series and M10 thru M16 Magnum flathead cast iron engines. Head diameter: 1-3/8"; Length: 4.64"; Stem; .3095"; Face Angle: 45°. Replaces Kohler part # 235008, 235582, 235582-S. $17.00 each, plus shipping & handling.

Used refaced 1-3/8" intake valve for above engines. $8.00 each, plus shipping & handling. (When available.)


New exhaust valve for 10hp, 12hp, early 14hp, models K241, K301, early K321 K-series and M10, M12 Magnum flathead cast iron engines. Head diameter: 1-1/8"; Length: 4.64"; Stem; .3095"; Face Angle: 45°. Heat-treated hardened steel. Replaces Kohler part # 235826, 235838, 235838-S. $19.00 each, plus shipping & handling.

Used refaced 1-1/8" exhaust valve for above engines. $8.00 each, plus shipping & handling. (When available.)


New exhaust valve for 14hp, 16hp, models K321, K341 K series and M14, M16 Magnum flathead cast iron engines. Head diameter: 1-3/8"; Length: 4.64"; Stem; .3095"; Face Angle: 45°. Heat-treated hardened steel. Replaces Kohler part # 237672, 237672-S. $32.00 each, plus shipping & handling.

Used refaced 1-3/8" exhaust valve for above engines. $16.00 each, plus shipping & handling. (When available.)


Grinding of 30° face angle on intake valve is $5.00 extra.
Valves for other makes and models of engines are also available. If you wish to purchase OEM or high-performance valve springs and oversize valves, contact either Lakota Racing, Midwest Super Cub or Vogel Manufacturing Co.
Stock (centered) cast iron valve guides NOTE: May need to be reamed to specs after installation.

For 7hp and 8hp K-series and Magnum cast iron block flathead engines. .310" i.d. x .5645" o.d. x 1.686" overall length. Replaces: Kohler 230007-S.

  • $8.00 each, plus shipping & handling.

For 10-16hp K-series and Magnum cast iron block flathead engines. .310" i.d. x .629" o.d. x 2.135" overall length. Replaces Kohler part # 235007-S.

  • $12.00 each, plus shipping & handling.

For flathead twin cylinder KT series and Magnum engines. Replaces: Kohler part # 52-316-02; 52-316-04; 52-316-06; 52-316-08; 52-316-08-S.

  • $8.00 each, plus shipping & handling.
New Valve Spring Locks. Replaces: Kohler 41-755-10-S; 240013. Fits 5/16" diameter valve stems. Fits 7-16hp K-series and Magnum cast iron block and twin cylinder KT series and Magnum flathead engines. Also fits 6-18hp single and twin cylinder Briggs & Stratton engines.
  • $6.00 set of two, plus shipping & handling.
Used OEM Kohler Valve Spring Retainers. Fits 5/16" diameter valve stems. Fits 7-16hp K-series and Magnum cast iron block and twin cylinder KT series and Magnum flathead engines. Also fits 6-18hp single and twin cylinder Briggs & Stratton engines. [When available.]
  • Non-rotator style. Requires 1-11/16" long valve spring (uncompressed height). $3.00 each, plus shipping & handling.
  • Rotator style. Requires 1-9/16" long valve spring (uncompressed height). $5.00 each, plus shipping & handling.
New scissors-type valve spring compressor for small engines. Heavy-duty frame and screw for rigidity. For Briggs and Stratton, Clinton, Kohler, Tecumseh, Harley-Davidson, etc. Adjustable-width jaws. Not for high performance double springs. Made in USA . $25.00 each, plus shipping & handling.

New "C"-shape valve spring compressor for small engines. Comes with two sizes of jaws for wide and narrow springs. Two jaw size; for springs 3/4" to 1-1/16" diameter. Heavy-duty frame and screw for rigidity. For Briggs and Stratton, Clinton, Kohler, Tecumseh, Harley-Davidson, etc. Not for high performance double springs. Made in USA . $35.00 each, plus shipping & handling.
New heavy duty "C"-shape automotive and small engine valve spring compressor. This tool can compress high-performance double springs for Kohler pulling engines! Adjustable-width jaws for narrow and wide springs. $45.00 each, plus shipping & handling.
NEWAY Valve Seat Cutter Kit for most air-cooled small engines. Comes with one 31° and 46° cutting head and necessary 1/4", 5/16" and 11/32" pilots. Can be used to narrow other angles. Has carbide cutters to recut even the hardest valve seats. Hand operated. Ensures greater accuracy and precision work. Made in U.S.A. Replaces (OEM): Briggs & Stratton part #19237. Part No. 32-1742. $300.00 each, plus shipping & handling.
More parts to be added later. If you need something that's not listed here, please contact us and we'll see if we can get it at a reasonable price. Please contact us if you're interested in any of the above parts or items.

Reconditioned OEM Cylinder Heads - These have been cleaned and resurfaced, with good fins and spark plug threads. (When available.)
Head for 7hp (K141; K161) & 8hp (K181/M8) engines. $40.00 each, plus shipping & handling.
2nd generation head for 10hp (K241/M10), 12hp (K301/K12) & 14hp (K321/M14) engines with small diameter (1-1/8") exhaust valve. $45.00 each, plus shipping & handling.
3rd generation head with centered spark plug hole for 10hp (K241/M10), 12hp (K301/K12) & 14hp (K321/M14) engines with small (1-1/8") or large (1-3/8") exhaust valves. $45.00 each, plus shipping & handling.
Newest style head with spark plug over exhaust valve (prevents plug fouling from cold starting & helps produce more power by retaining majority of heat in one area) for 10hp (K241/M10), 12hp (K301/K12) & 14hp (K321/M14) engines with small or large exhaust valves. $75.00 each, plus shipping & handling.
High compression "LP" head for 10hp (K241/M10), 12hp (K301/K12) & 14hp (K321/M14) Kohler engines with small diameter exhaust valve. $160.00 each, plus shipping & handling.
Head for 16hp (K341/M16) engine. $125.00 each, plus shipping & handling.
Grade 8 Bolts and Grade 8 Flat Washers for Heads Above -
  • For 7 & 8hp heads - 5/16" diameter x 1-1/2" long. $10.50 per set of 7, plus shipping & handling.
  • For 10, 12 & 14hp heads - 3/8" diameter x 1-1/2" or 2-1/2" long. NOTE: head bolt length is determined by the type of cylinder head. The head with the short bolt holes use the 1-1/2" bolts, and the head with the tall bolt holes use the 2-1/2" bolts.) $13.50 per set of 9, plus shipping & handling.
  • For 16hp heads - 3/8" diameter x 1-1/2" long. $15.00 per set of 10, plus shipping & handling.
  • Note: The length of a bolt do not include the head itself. All bolts are measured from under the head to the end of the threads.


Head Stud Kit for OEM or billet cylinder heads. Studs help maintain even torque pressure for better head gasket sealing, plus they maintain cylinder wall stability for better ring seal to lessen the loss of compression.
  • For 10, 12 and 14hp Kohler engines. Kit includes (9) 3/8" diameter x 1-1/2" or 2-1/2" long heat-treated studs, grade 8 nuts and grade 8 flat washers. NOTE: stud length is determined by the type of cylinder head. The head with the short bolt holes use the 1-1/2" studs, and the head with the tall bolt holes use the 2-1/2" studs. $20.00 per set, plus shipping & handling.
  • For 16hp Kohler engines. Kit includes (10) 3/8" diameter x 2" long heat-treated studs, grade 8 nuts and grade 8 flat washers. $22.50 per set, plus shipping & handling.
Cylinder Head Machine Work - [Return To Previous Paragraph]
  • Bead-blast (thoroughly clean) air-cooled small engine cylinder head. $10.00 labor, plus return shipping & handling.
  • Resurface air-cooled small engine cylinder head to remove warpage. $7.00 labor, plus return shipping & handling.
  • Mill cylinder head approximately .050". $25.00 labor, plus return shipping & handling. This is for the 10hp-16hp flathead, K-series and Magnum single cylinder engines only.
  • Repair stripped spark plug threads. (No need to purchase another cylinder head.) $10.00 - $20.00 each (depending on size of hole) for parts and labor, plus return shipping & handling.
  • Mill out exhaust valve cavity in LP and 2nd generation cylinder head to clear the larger 1-3/8" exhaust valve. $25.00 each labor, plus return shipping & handling.
  • Professionally mill out combustion chamber and install spark plug threads in billet head for 10-16hp flathead, K-series or Magnum single cylinder engines. $350.00 labor, plus return shipping & handling. By the way - the combustion chamber is not CNC machined. We mill it out manually with a milling machine and die grinder. Billet head extra.
  • Repair loose valve seat in the OHV 18hp K361 Kohler or Tecumseh OHV engines. (Install oversize o.d. valve seat so the OEM valve can be reused.). $50.00 each for parts and labor, plus return shipping & handling.
  • Install oversize o.d. valve guide in the same heads above (so the OEM valve can still be reused.). $25.00 each for parts and labor, plus return shipping & handling.
  • Valves for 18hp K361 OHV cylinder head. (No longer available from Kohler. These are machined from valve blanks or oversized valves.)
    • Intake: $35.00 each, plus shipping & handling.
    • Exhaust: $45.00 each, plus shipping & handling.

Auxiliary Crankcase Breather Kit -
Auxiliary Crankcase Breather Kit -
  • For better engine venting and less oily mess above 4,000 rpm.
  • Kit includes street elbow, short pipe fitting, 12" vinyl tubing, clamp and MOPAR breather.
  • NOTE: For Kohler blocks, use a 3/4" NPT taper pipe tap to cut threads in the block to install the pipe fitting. For aftermarket blocks, use a 1" NPT taper pipe tap to cut threads in the block to install the pipe fitting. Sold below. Ê
  • Auxiliary Crankcase Breather Kit: $30.00 each, plus shipping & handling.
  • 3/4" NPT taper pipe tap. Made of quality carbon steel. $21.00 each, plus shipping & handling. Part # WT0321-0025
  • 1" NPT taper pipe tap. Made of quality carbon steel. $27.00 each, plus shipping & handling. Part # WT0321-0030
  • Many other size taps also available.

18hp OHV, OEM Stock Camshafts and Used Governor Gears - Top of page
Kohler CamshaftUsed genuine OEM Kohler one-piece cast iron camshaft with a working automatic compression release for Kohler K-series 10hp-16hp K241-K341 and Magnum M10-M16 flathead cast iron block engines. The points lobe, lifter lobes, gear teeth and compression release tang are all in good condition. Kohler part # 47-010-09. These are NOT 18hp cams, and we have no used 18hp cams available. $50.00 each, plus shipping & handling. [When available.]


Reground Low RPM, Torque CamshaftReground 4,000 rpm torque cast cam with stock lift and increased duration for stock 10-16hp flathead Kohler engines. This cam profile will pass tech for an OEM stock cam, but it adds about 2-1/2 more horsepower to an average stock engine with a lot more torque (lugging power) than the 18hp cam. This cam sounds just like an OEM stock cam. You can't hear the difference out the exhaust. It's perfect for a competing stock pulling tractor or for ordinary yard work. This cam installs just like the OEM cam. Just align the marks on the gear teeth, set the end-play and valve clearance to OEM specs, and it'll be good to go. $150.00 outright, plus shipping & handling. $25.00 core charge, when you send us your cam. Core must be in good condition, never reground before with no worn points lobe and gear teeth in good condition. When sending a core to us, be sure to include a note with your name, mailing address, phone number and that you want to trade the cam in as a core. We will then deduct $25.00 from the price of the torque cam. Please send your core cam to: A-1 Miller's Performance Enterprises, 1501 W. Old Plank Rd., Columbia, MO 65203 USA.


New .499" diameter x 7" long camshaft pin made of 1144 Stress-Proof Steel (95,000 p.s.i. strength) for Kohler K-series 10hp-16hp K241-K341 and Magnum M10-M16 flathead cast iron block engines. Replaces Kohler part # 47 380 09 S. $8.00 each, plus shipping & handling.


Needle Roller BearingNew Needle Bearings for installation in the [Kohler] block for the cam pin to ride on when installing a steel cam. Dimensions: 1/2" i.d. x 11/16" o.d. x 1/2" width. $10.00 each, plus shipping & handling.

Used, but in good condition, governor gear assemblies for Kohler K-series and Magnum 10hp-16hp flatheads, 18hp K361 OHV single cylinder cast iron block engines, and KT-series flathead twin cylinder engines.

Plastic Governor Gear. Good for up to 4,000 rpm. OEM Kohler part # A235743S. $12.00 each, plus shipping & handling. [When available.]


Cast Iron Governor Gear. Good for rpms above 4,000. No longer available from Kohler. $40.00 each, plus shipping & handling. [When available.]
New 3/8" diameter stub shaft (dowel pin) for governor gears above. Precision ground, heat treated alloy steel. Replaces Kohler part # 235125-S. $3.00 each, plus shipping & handling.

Used OEM Crankshafts, Balance Gears and New Main Bearings -
10hp, 12hp, 14hp and 16hp K-series and Magnum flathead single cylinder engine crankshafts. These cast iron cranks are a genuine Kohler part, they're used, but in good condition. They may have either a 1" or 1-1/8" diameter x 3-1/2" long keyed PTO shaft and may have a STD or freshly reground .010", .020" or .030" undersized journal. Although .030" is rare, it's still safe to use. And if you're going to use a pulley, clutch, etc., on the PTO end, then I need to know the dimensions of the PTO shaft on your crankshaft so we can match it to one that we may have in stock. Measure the diameter and length from the gear teeth. [When available.]
  • 10hp (K241/M10) $100.00 each, plus shipping & handling.
  • 12hp (K301/M12) $150.00 each, plus shipping & handling.
  • 14hp (K321/M14), 16hp (K341/M16) and 18hp (K361) $125.00 each, plus shipping & handling.
New main crankshaft bearings for 7hp and 8hp Kohler K-series and Magnum single cylinder cast iron flathead engines. These are specifically designed to provide maximum performance by means of precise ball implement selection. Heat treated. Good for high performance use. Made in China, but has the same quality as OEM Kohler bearings for long wear. Dimensions: 1.18" i.d. x 2.44" o.d. x .62" width. $15.00 each, plus shipping & handling. Part # 150-960
New 8 ball main crankshaft bearings for 10hp, 12hp, 14hp, 16hp (flatheads) and 18hp (OHV) Kohler K-series and Magnum single cylinder cast iron engines. These are specifically designed to provide maximum performance through precise ball implement selection. At higher rpms, bigger balls run cooler which create less rolling resistance than bearings with smaller balls. Heat treated. Good for high performance use. Made in China, but has the same quality as OEM Kohler bearings for long wear. Replaces Kohler part # 235376. Dimensions: 1.57" i.d. x 3.54" o.d. x .90" width. $20.00 each, plus shipping & handling. Part #150-973
NOTE: With the main bearings removed from an engine, and if all the oil is cleaned from the bearings, allowed to thoroughly dry, and then the bearings are spun by hand, and if the bearings isn't worn much or at all, they might feel "rough" and make a rattling sound. This rattling sound isn't necessarily because the bearing is worn. The noise is caused by the balls running dry on the races because there's no oil to separate them. They're simply making metal to metal contact. Try applying a small amount of motor oil to the balls/races and then spin them. They should now be a lot quieter. The same thing will happen with new ball bearings. By the way - Most main bearings in a Kohler engine will wear extremely little, if any at all, and usually don't require replacing. Although some main bearings will wear (which is obvious), and need to be replaced. And excessively worn main bearings will make a rumbling noise and the engine will have a more than-usual-vibration.
Flywheel Retaining NutFlywheel retaining nuts for threaded stud on end of crankshaft. Self-tightening jam nuts. Guaranteed to stay tight!

Available in..

  • 5/8" diameter, fine thread (5/8-18 NF). $1.50 each, plus shipping & handling.
  • 3/4" diameter, fine thread (3/4-16 NF). $1.75 each, plus shipping & handling.
  • Each torque at 65 ft. lbs. IMPORTANT: Apply thin coat of oil on threads of crankshaft before installing nut.
Flywheel retaining bolts for threaded hole in end of crankshaft. Grade 8, 1-1/2" long.
  • 3/8" diameter, fine thread (3/8-24 NF). .50¢ each, plus shipping & handling.
  • 5/8" diameter, fine thread (5/8-16 NF). $1.00 each, plus shipping & handling.
  • 3/8" bolt torque at 35 ft.lbs., 5/8" bolt torque at 65 ft. lb. IMPORTANT: Apply thin coat of oil on threads of bolt before installing.
Flat washer for retaining flywheel or aluminum clutch hub to flywheelSteel flat washer for retaining flywheel and/or aluminum Cub Cadet clutch hub adapter to flywheel. A must to secure flywheel and to prevent hub breakage! Available in 3/8", 5/8" or 3/4" diameter center hole. 1-1/4" o.d. x approximately 1/4" thick. $3.00 each, plus shipping & handling. Machined Adaptor StepwasherSteel adapter step-washer for mounting the aluminum clutch hub with a 5/8" hole to the Kohler Magnum crankshaft with a 3/8" bolt. A must to prevent hub breakage! $18.00 each, plus shipping & handling.
NOTE: We can also custom machine other adapter washers to fit your particular application. All we need is the dimensions. $22.00 each, plus shipping & handling.
For die-hard believers in using balance gears!

Used 12hp, 14hp and 16hp balance gears with good, snug bearing. $17.00 per pair, plus shipping & handling. (When available.)

Complete kit (balance gears, stub shafts, shims and snap rings) to convert an ordinary Kohler K-series and Magnum 10hp, 12hp, 14hp, 16hp (flatheads) and 18hp (OHV) single cylinder cast iron engines to Dynamic Balance. The two holes MUST be present in the block for this to work! $35.00, plus shipping & handling. (When available.)

Please contact us if you're interested in any of the above parts.

[Please Click Here for Air Filters, Carburetor Parts and Fuel System Parts]


Miscellaneous External Engine Parts - Top of page
Flywheels, Flywheel Shrouds and Conversion Kits - (Click here for starter motors and solenoids.)
Used 9-1/2" diameter genuine OEM cast iron Kohler K-series flywheel for 10hp-16hp K-series flathead and 18hp OHV engines. These flywheels are for the K-series Kohler engines with battery ignition only, not the Magnum engines or engines with magneto ignition. They're in excellent condition and unaltered. No crack in the keyway, no broken or missing fins and no cracked or missing internal magnets for charging system (if used for yard use). These flywheels are for stock tractors only; not to be turned above 4,000 rpms!
  • Starter ring gear (for flywheel) only. These ring gears have good teeth, not bent and in excellent condition. $20.00 each, plus shipping & handling.
  • OEM unaltered flywheel without ring gear (install your own ring gear), with full fins and with or without internal magnets for charging system. $80.00 each, plus shipping & handling.
  • OEM unaltered flywheel with full fins, ring gear and internal magnets. $100.00 each, plus shipping & handling
  • OEM flywheel without ring gear (install your own ring gear) and majority of fins removed, precision balanced and with or without internal magnets: $125.00 each, plus shipping & handling. NOTE: Please specify if you need a flywheel with 2 or 4 threaded bolt holes towards the center (see pictures below), and with or without charging magnets. But if the magnets are glued in, we leave them alone.
  • OEM flywheel with ring gear and majority of fins removed, precision balanced and with or without internal magnets. $155.00 each, plus shipping & handling. NOTE: Please specify if you need a flywheel with 2 or 4 threaded bolt holes towards the center (see pictures below), and with or without charging magnets. But if the magnets are glued in, we leave them alone.
  • Your OEM Kohler K-series flywheel - remove majority of fins and precision rebalance. $100.00 labor, plus return shipping & handling. Includes removing most of the fins, chuck it in our lathe to true up the fins so they're all even and then balance it. NOTE: If you're going to use your engine for long periods of time, like mow the lawn, then we don't recommend removing the fins. The engine will run hotter than normal and premature engine wear may result. Click the picture below for a larger view.
    Unaltered OEM Kohler Flywheel
Used flywheel shrouds for Kohler K-series 10hp-16hp flathead engines with the 9-1/2" flywheel and the upper mount gear starter. These are in good condition, not damaged, cracked or rusted out. $35.00 each, shipping included within in the Continental U.S. if purchased separately. [When available.] Used large aluminum bearing plate for the 9-1/2" flywheel and battery ignition on 10hp-16hp Kohler K-series flathead engines. These are in good condition, not damaged. Comes without bearing and oil seal. $45.00 each, shipping included within in the Continental U.S. if purchased separately.[When available.]
All the parts needed to convert your 10hp-16hp single cylinder Kohler K-series flathead engine from the small flywheel with the starter/generator to the large flywheel with the ring gear starter. The flywheel is for stock tractors only; not to be turned above 4,000 rpms! Includes the following parts: [When the used parts are available.]
  • Used 9-1/2" unaltered, OEM cast iron Kohler flywheel.
  • Used large bearing plate.
  • Used large flywheel shroud (for the upper-mount starter).
  • New upper-mount high-torque electric gear starter (OEM type).
  • Starter solenoid (if your particular tractor requires one).
  • $275.00 per kit w/o solenoid or $286.00 w/solenoid and with unaltered Kohler flywheel.
  • Used charging stator and new solid state voltage regulator: $75.00.
  • $315.00 per kit w/o solenoid or $326.00 w/solenoid with Kohler flywheel with starter ring gear and majority of fins removed and precision balanced.

NOTE: These are the older K-series flathead engine parts, not Magnum. All used parts are in excellent condition. And if you have a narrow frame tractor, the frame rails MUST be spread or widened for these parts to fit. Because there's no other way to make them work. And this conversion kit is meant mainly for pulling tractors.

Aluminum and Cast Iron Cub Cadet Oil Pans - Top of page
Narrow Base Block Oil Pans -

Used cast iron flat bottom or aluminum deep sump oil pan. These originally came off an early model 10hp K241 K-series flathead engine that was in a Cub Cadet, but will fit the 12, 14 and 16hp K-series and Magnum flathead engines with half of oil dipper on connecting rod cut off. This is also an exact replacement for John Deere models 110, 112 and early model 210 with the Kohler K241 engines. Model 112 serial number 100,001 – 250,000, 110 serial number 250,001 and up with the Kohler 10hp K241 engine, and 210 up to serial number 95,261. These will also fit Wheel Horse garden tractors. Clean and in excellent condition, including good bolt threads. Includes drain plug. Holds 1 quart of oil. $55.00 each, plus shipping & handling. [When available.]

Cast iron deep sump oil pan. Good for long stroke pulling engines. NOTE: For better lubrication, these oil pans require a full length oil dipper on the connecting rod. Includes drain plug. Holds 1-1/2 quarts of oil. $75.00 each, plus shipping & handling. [When available.] Aluminum deep sump oil pan. Good for general yard use or governored stock pulling engines. NOTE: For better lubrication, these oil pans require a full length oil dipper on the connecting rod. Includes drain plug. Holds 1-1/2 quarts of oil. $50.00 each, plus shipping & handling.
Wide Base Block Oil Pans -

Used (but clean and in excellent condition, including good bolt thread holes) cast iron wide base, deep oil pan for Kohler K-series and Magnum flathead engines. These come on various makes of tractors such as: Ariens, Wheel Horse, some Ford, some Jacobsen, Gravely, New Holland, Sears Suburban, Engineering Products Co. (Economy models) and Allis Chalmers. NOTE: For better lubrication, these oil pans require a full length oil dipper on the connecting rod. Includes drain plug. Holds 3 quarts of oil. $40.00 each, plus shipping & handling. [When available.]

More parts to be added later. If you need something that's not listed here, please contact us and we'll see if we can get it at a reasonable price. Please contact us if you're interested in any of the above parts or items.


Complete Exhaust Header Pipe Kits - We offer three types of exhaust header pipe kits. Top of page
IMPORTANT! The two holes that's to be drilled and tapped for the header pipe in the exhaust port of the engine block should be performed on the table of a large milling machine by an experienced machinist. The holes are to be drilled with a letter "F" or 17/16" drill bit, and about 1-1/4" deep. Then the threads cut perpendicular to the exhaust flange with a 5/16-24 NC tapered tap. Use plenty of oil and go slow to prevent from breaking the tap off in the block. Because if it breaks off, it'll be terribly hard to remove.
Complete and ready to bolt on header pipe kit for 10hp, 12hp and 14hp Stock and Stock-Altered Kohler engines with stock size valves and with or without a working governor.

Kit includes one 1-3/16" i.d. x 1-5/16" o.d. pipe; measures approximately 7" from the block and approximately 19" tall; has a 90° semi-mandrel bend; mounting flange; two Allen head stainless steel mounting bolts and an anti-vibration brace. Galvanized-coated steel. Very shiny, resists rust. Designed for use on Cub Cadets and most other makes & models of garden tractors with a 10, 12 or 14hp Kohler K-series or Magnum engines. This pipe has a flange that securely fastens to the engine block with two furnished 5/16" diameter coarse thread (5/16-18 NC) Allen head bolts. If your block don't have the two threaded mounting holes, then they will need to be drilled and tapped to accept the pipe. There is no other way to fasten this pipe to the block. Comes with no mounting gasket. Use silicone sealer instead. An adapter is NOT needed for this pipe because the flange is small enough to clear the governor lever. Shipping weight is 4 lbs.

  • Header pipe alone, with 90° bend. (No flange or anything else included.) $15.00, plus shipping & handling.
  • Header pipe with flange, but not welded. Anti-vibration brace included. (No hole drilled in brace): $30.00 each, plus shipping & handling. NOTE: You'll have to locate and drill the hole in the brace to fasten to the head bolt.
  • Header pipe with flange welded-on and anti-vibration brace included: $40.00 each, plus shipping & handling. Ready to bolt-on.


Steel header pipe mounting flange-to-engine block for 10, 12 and 14hp single cylinder, and KT17, KT19, M18 and M20 twin cylinder Kohler and Magnum flathead engines. Approximately 3/16" thickness, (2) 5/16" diameter mounting holes spaced 1-3/4" apart, 1-5/16" center hole. No adapter required. NOTE: Two 5/16-18 NC threaded holes must be tapped in the exhaust port to accept this flange. $10.00 each, plus shipping & handling.
5/16-18 NC stainless steel Allen head bolts for above flange: $2.00/set of 2, plus shipping & handling.
Complete and ready to bolt on header pipe kit for 10hp, 12hp and 14hp Stock-Altered and 30 c.i. Super-Stock Kohler engines with oversize valves and without a governor lever.

Kit includes one 1-3/8" i.d. x 1-1/2" o.d. pipe; measures approximately 7" from the block and approximately 19" tall; 90° bend; mounting flange; two hex head stainless steel mounting bolts; two Allen head mounting bolts; steel block-to-flange adapter and an anti-vibration brace. Galvanized-coated steel. Very shiny, resists rust. The adapter securely fastens to the engine block with two furnished 5/16" diameter coarse thread (5/16-18 NC) Allen head bolts. If your block don't have the two threaded holes, then they will need to be drilled and tapped to accept the adapter. There is no other way to fasten this pipe to the block. Comes with no mounting gasket. Use silicone sealer instead. Designed for use on Cub Cadets and most other makes & models of garden tractors with a 10, 12 or 14hp Kohler K-series or Magnum engines. Shipping weight is 5 lbs.

  • Header pipe alone, with 90° bend. (No flange or anything else included.) $10.00, plus shipping & handling.
  • Pipe with flange, but not welded. Anti-vibration brace included. (No hole drilled in brace). $25.00 each, plus shipping & handling. NOTE: You'll have to locate and drill the hole in the brace to fasten to the head bolt.
  • Pipe with flange welded-on and anti-vibration brace included: $50.00 each, plus shipping & handling. Ready to bolt-on.


Steel header pipe mounting flange-to-engine block for 16hp Kohler engines.1/4" thick, (2) 5/16" mounting holes spaced 2-1/4" apart, 1-1/2" center hole. To be welded onto a 1-1/2" o.d. pipe. Fits 16hp Kohler K-series and Magnum flathead engines and adapter below. NOTE: Two 5/16-18 NC threaded holes must be tapped into exhaust port to accept this flange. $15.00 each, plus shipping & handling.

5/16-18 NC stainless steel hex-head bolts with flat washers for above flange: $2.00/set of 2, plus shipping & handling.


Exhaust port-to-header flange adapter for 10, 12 and 14hp Kohler K-series and Magnum flathead engines. Used to adapt the 1-1/2" i.d. header flange (above) to the block because the bolt holes on the exhaust port aren't spaced out enough to accept the flange alone. Has (2) 5/16" drilled holes spaced 1-3/4" apart, (2) 5/16-18 NC threaded holes spaced 2-1/4" apart, with a 1-3/16" center hole. Mounts with (2) 5/16-18 NC stainless steel Allen head bolts (included). Made of steel. $30.00 each, plus shipping & handling.
Complete header pipe kit for 16hp Stock, Stock-Altered or Super-Stock Kohler engines with stock size or oversize valves and with or without a working governor.

Kit comes with a 1-3/8" i.d. x 1-1/2" o.d., pipe; measures approximately 7" from the block and approximately 19" tall; 90° bend; mounting flange; two hex head stainless steel mounting bolts with flat washers and an anti-vibration brace. 16 gauge galvanized-coated steel. Very shiny, resists rust. This pipe has a flange that securely fastens to the engine block with two furnished 5/16" diameter coarse thread (5/16-18 NC) bolts. If your block don't have the two threaded holes, then they will need to be drilled and tapped to accept this pipe. There is no other way to fasten this pipe to the block. Comes with no mounting gasket. Use silicone sealer instead. Designed for use on Cub Cadets and most other makes & models of garden tractors with a 16hp Kohler K-series or Magnum engine. Shipping weight is 4 lbs.

  • Header pipe alone, with 90° bend. (No flange or anything else included.) $10.00, plus shipping & handling.
  • Header pipe with flange, but not welded. Anti-vibration brace included. (No hole drilled in brace): $25.00 each, plus shipping & handling. NOTE: You'll have to locate and drill the hole in the brace to fasten to the head bolt.
  • Header pipe with flange welded-on and anti-vibration brace included: $40.00 each, plus shipping & handling. Ready to bolt-on.


Steel header pipe mounting flange-to-engine block for 16hp Kohler engines.1/4" thick, (2) 5/16" mounting holes spaced 2-1/4" apart, 1-1/2" center hole. To be welded onto a 1-1/2" o.d. pipe. Fits 16hp Kohler K-series and Magnum flathead engines and adapter below. NOTE: Two 5/16-18 NC threaded holes must be tapped into exhaust port to accept this flange. $15.00 each, plus shipping & handling.

5/16-18 NC stainless steel hex-head bolts with flat washers for above flange: $2.00/set of 2, plus shipping & handling.

NOTE: To fasten the anti-vibration brace to the pipe, with an engine turning no more than 4,000 rpms, it's safe to use a stainless steel automotive radiator hose clamp. But if an engine is going to run at wide open throttle, it's best to use a 1-1/2" automotive "U" shaped muffler clamp. These are available at any auto parts store. By the way - the anti-vibration brace is very important because we think there's nothing more embarrassing and being disqualified than having a welded-on header pipe break off at the weld while the tractor is pulling down the track.

Please contact us if you're interested in any of the above parts or service.


Machine Shop Services - Top of page
Precision Dynamic Balancing Service - To balance a rotating assembly, we need the crankshaft, piston/rings, pin, clips, connecting rod and bearing inserts. The flywheel is balanced separately.
  • Balance cast crankshaft - $125.00 labor (mallory extra).
  • Balance steel crank - $150.00 and up (mallory extra).
  • Balance flywheel (steel or cast - ring gear is required for balancing) - $50.00 labor.

Engine Block -

  • Bore cylinder to fit next oversize piston (OEM engine block): $50.00 labor per cylinder.
  • Bore cylinder to fit aftermarket piston (new aftermarket [Kohler] block): $120.00 labor.
  • Clearance bottom cylinder bore for stroker crankshaft: $75.00 labor.
  • Bore cam pin holes to 11/16" (.6875") for installation of needle bearings (OEM or aftermarket [Kohler] block): $50.00 labor.
  • Remove welch plug and cut threads for auxiliary crankcase breather (OEM and aftermarket [Kohler] block: $20.00 labor.
  • Clean block: $7.00 labor.
  • Drill and tap two 5/16"-18 holes in exhaust flange (to mount header pipe): $30.00 labor.
  • Drill out broken bolt in exhaust flange and cut new 5/16-18 NC threads (to mount header pipe): $10.00 labor each.
  • Resurface exhaust mounting flange (to insure sealing of header pipe flange): $10.00 labor.
  • Drill 7/8" center hole and two outer 1/4" bolt holes in 10-16hp Kohler blocks to mount mechanical fuel pump. $50.00 labor.
  • Drill and tap stripped 3/8" NPT aluminum oil pan drain plug hole to 1/2" NPT plug. $6.00 parts & labor. Includes 1/2" NPT square head plug.
  • Convert wide base block to narrow base. (Cut off flanges and grind remaining metal even with block.) $75.00 labor.
  • Convert wide base block to narrow base. (Cut off flanges, grind remaining metal even with block and cut threads in oil pan mounting holes.) $85.00 labor.
  • Convert wide base block to narrow base. (Cut off flanges, weld in steel stock to fill in oil fill holes and grind remaining metal even with block.) $100.00 labor.
  • Convert wide base block to narrow base. (Cut off flanges, weld in steel stock to fill in oil fill holes, grind remaining metal even with block and cut threads in oil pan mounting holes. $110.00 labor.

Valve Train Related - Click here for Cylinder Head Machine Work.

  • Grind used valve to OEM angle: $5.00 each, plus return shipping & handling.
  • Grind [45°] intake valve at 30° angle: $7.00 each, plus return shipping & handling.
  • Grind seat to OEM angle or 30° angle: $5.00 each, plus return shipping & handling.
  • Perform valve job to OEM specs (grind two valve faces and seats), install valves in OEM [Kohler] block and set clearances: $35.00 labor, plus return shipping & handling.
  • Regrind and rework two stock valves and seats in OEM [Kohler] block for improved airflow: $50.00 labor, plus return shipping & handling. Price includes grinding the exhaust valve & seat at 45°/46° angles, intake valve and seat at 30°/31° angles respectively and undercutting both valve heads.
  • Install 1-3/8" exhaust valve in OEM [Kohler] block that originally came with 1-1/8" exhaust valve. $75.00 labor, plus return shipping & handling. Price does not include any parts.
  • Install oversize valves in OEM [Kohler] block: $150.00 labor, plus return shipping & handling. Price does not include any parts.
  • Install stock size valves in aftermarket [Kohler] block with small uncut valve pockets: $150.00 labor, plus return shipping & handling. Price does not include any parts.
  • Install oversize valves in aftermarket [Kohler] block with small uncut valve pockets: $200.00 labor, plus return shipping & handling. Price does not include any parts.
  • Port/polish intake and exhaust runners (OEM or aftermarket [Kohler] block with large ports): $75.00 labor, plus return shipping & handling.
  • Port/polish intake and exhaust runners (aftermarket [Kohler] block with small ports): $200.00 labor, plus return shipping & handling.
  • Install 1-3/8" exhaust valve in 10, 12 and older 14hp OEM Kohler block: $50.00 labor, plus return shipping & handling.
  • Install oversize valves, and port/polish intake and exhaust runners (OEM [Kohler] block): $175.00 labor, plus return shipping & handling.
  • Install oversize valves, and port/polish intake and exhaust runners (aftermarket [Kohler] block): $300.00 labor, plus return shipping & handling.
  • Install OEM-type [centered] replacement cast iron valve guides in OEM Kohler block: $15.00 each.
  • Install thin-wall bronze sleeves in valve guides in Kohler and other makes of engines with no removable valve guides. $10.00 each. NOTE: Bronze valve guide sleeves are an alternative to replacing the entire guide in Kohler engines. Bronze also last longer than cast iron guides because bronze retains more oil for better lubrication of the valve stem. Also, these type of valve guides requires special air-operated tools to install. They're expensive and not something an average person would have on hand.
  • Install offset valve guides in OEM Kohler block. $50.00, plus return shipping & handling. Includes labor and two steel guides with thin-wall bronze sleeves. Oversize valves MUST be used with offset guides.

Crankshaft Repairs -

  • Clean burnt aluminum and polish journal to shiny finish: $10.00 each journal. (The only problem with doing this is it may clean up nicely not be worn. If it is worn, it would need to be reground to the next undersize. If it's not worn, then a STD size connecting rod can be used. But if it is worn, an undersize rod and possibly one with a bearing insert is required. If it does need regrinding, then there's no charge for cleaning it.)
  • Regrind journal (crank pin): $55.00 per journal. Note: Kohler crankshafts can be reground to .030" undersize and still be safe to use with matching undersized bearing inserts installed in the connecting rod. And all crankshafts, rather if they're automotive or small engine, are checked for straightness before grinding. If they're bent or twisted, sometimes they can be straightened. We also do offset crankshaft grinding to increase the length of the stroke at no extra charge.
  • On the 7hp and 8hp Kohler and other makes and models of engines when an undersize connecting rod or bearing inserts isn't available, if the crankshaft is worn beyond .010" and needs to be reground again, the journal can be reground to wherever it "cleans up" or is true again, and then the connecting rod can be resized so it'll fit the smaller undersize journal. To fit the rod to the smaller diameter crank journal, we remove metal from the mating end of the rod cap, then we fasten the cap to the rod. The big hole in the rod is now oblong or "egg shaped." Then we resize the hole until it's .002" larger than the diameter of the crank journal. This reshapes the hole into a perfect circle again, only smaller in diameter. This can only be performed on a rod with a good bearing surface. It cannot be done on a burnt or heavily scored connecting rod. This works very well and it lasts as long as an ordinary STD rod and crank journal. The cost for doing this is $75.00 labor, plus return shipping & handling. If you're interested, we will need your crankshaft and connecting rod.
  • Repair broken off 5/8" stud in crankshaft on flywheel end. We center drill and cut threads for a hardened 5/8" diameter bolt in the end of the crankshaft to secure the flywheel. $40.00 labor, plus return shipping & handling.
  • Drill hole and cut 7/16-20 NF threads in the PTO end of the crankshaft for a retaining bolt and flat washer. $20.00.

Machine Work for Connecting Rod -

  • Bore and notch 10hp-18hp cast iron block single cylinder Kohler connecting rods for installation of bearing inserts: $25.00 labor, plus shipping & handling.
  • Clevite 77 Bearing InsertsClevite 77 bearing inserts available only in STD, .010", .020" undersizes. $15.00 each, plus shipping & handling.
  • Federal Mogul bearing inserts available only in .030" undersize. $25.00 each, plus shipping & handling.
    • Bearing inserts are available in STD, .010", .020" and .030" undersizes. Please let us know if you want the bearing centered in the bore of the rod (piston flush with top of block) or offset .020" or more (up to .125" at no extra charge) to pop the piston out of the cylinder to raise the compression and help improve air flow within the combustion chamber for more power and torque. The bearing inserts we install in Kohler connecting rods can be used for ordinary yard work or pulling competition.
    • More of our parts & services: Engine Rebuild Parts, Machine Shop Services, Engine Rebuilds & Build-up and Exhaust Header Pipe Kits


Please contact us if you're interested in any of the above parts or services.


Bare Kohler K-series Engine Blocks (when available) - Top of page
  • 7hp and 8hp engine block. (K141, K161 & K181 with 2-15/16" bore) $40.00 each, plus shipping & handling.
  • 10hp (K241) engine block. $65.00 each, plus shipping & handling.
  • 10hp (K241) engine block with 10hp bore and K301 embossed on the PTO end. (Extra thick cylinder wall.). $200.00 each, plus shipping & handling.
  • 12hp (K301) engine block. $125.00 each, plus shipping & handling.
  • 14hp (K321) engine block. $150.00 each, plus shipping & handling.
  • 16hp (K341 - 12 fin) engine block. $250.00 each, plus shipping & handling.
  • 16hp (K341 - 13 fin) engine block. $400.00 each, plus shipping & handling.
  • Packaged shipping weight for each block is 48 lbs.

NOTE: There are many variations in the 10-16hp Kohler blocks:
  • Some blocks have a wide base (flanges) and some have a narrow base.
  • The very early 10hp blocks have no indention for installing an upper mount gear starter. Also, some of these blocks with flanges (for the wide oil pan) have no holes drilled for converting to a narrow base oil pan. (But the holes can be drilled and tapped.).
  • Some have the oil dipstick tube hole next to the cylinder, while others have no hole there. The hole is either drilled or threaded. Some blocks have provisions for a starter-side mounted oil dipstick tube, and some don't.
  • Some blocks come with balance gears and some don't. Some have a plug where balance gear stub shafts can be installed, and some have no holes drilled for the stub shafts.
  • Some blocks have two threaded holes for mounting an exhaust pipe flange and provisions to mount a mechanical fuel pump, and some don't have these.
  • The threaded holes on the PTO end of the block can have different bolt patterns.
  • A 12 fin 16hp block works great for the Stock, Stock Altered and Missouri Super Stock classes, and the 13 fin 16hp block works better for the 50+ cube class because it has a thicker cylinder wall.
  • Other than these things, everything else on the blocks is pretty much the same.



Miller's Engine Refreshing, Rebuilding, and Build-up Service - Top of page
If you need your engine refreshed, rebuilt or built up for pulling competitively or so it'll produce more power and torque, please contact A-1 Miller's Performance Enterprises | 1501 W. Old Plank Rd. | Columbia, MO 65203 USA | Phone: 1-573-875-4033. Please call any day, 9am to 5pm, Central time. If no answer, please try again later. (When speaking with Brian, please be patient because I stutter.) Fax: 1-573-449-7347. E-mail: pullingtractor@aol.com. You can also contact us through Yahoo! Messenger: Find us here: Directions to our shop | Yahoo! Maps, 1501 W. Old Plank Rd., Columbia, MO | 1501 West Old Plank Road, Columbia, MO - Google Maps or Map of 1501 West Old Plank Road, Columbia, MO by MapQuest.
Engine Rebuilding Service -

We rebuild anything from ordinary stock engines up to high performance engines. We can rebuild your engine however you want. Just tell us know how you're going to use your tractor or equipment and we'll build your engine to suit your needs. If you wish to have us to rebuild or build-up your engine, we'll need a list of what you want done to your engine or a copy of your club's pulling rules regarding the engine requirements before we can give you an estimate on the cost. We'll build your engine to the limit according to the rules, not less than what the rules allow.

Whenever we rebuild or build-up an engine, and if you wish to do so, we do whatever it takes so it'll produce the factory-rated horsepower or the maximum horsepower and torque, and last a long time. We go beyond what the repair manual says to do. We can get all the parts needed, too. We can build your engine so it'll be legal for the class you plan to pull in. And with our engine rebuilds and build-ups, you may not always win, but you'll look good trying!

We also rebuild ordinary lawn & garden equipment engines too, such as cast iron and aluminum block single- and twin-cylinder flathead, OHV and v-twin Briggs & Stratton, Kohler, Tecumseh and 2-cycle LawnBoy.

All pulling engine builds are strictly confidential. This means your pulling competition will not know what goes into your engine!

Below are details and prices to rebuild your engine -
Briggs & Stratton 3hp to 5hp flathead aluminum block engine (horizontal or vertical shaft) rebuild to OEM factory specifications @ 3,600 governed rpms (for general yard work only)
  • Your engine: $85 - $125 (depending on size of engine and extent of wear), includes our parts and labor, return shipping extra.
    • Parts and labor includes new rings, professional valve job, clean and rebuild carburetor, new gaskets, oil seals and whatever else it may need.

Briggs & Stratton 5hp single cylinder horizontal shaft flathead aluminum block "Box Stock Racing Go-Kart Engine" build to the max @ unlimited rpms (for racing only)

  • Your engine: $500 - $700±, includes our parts and labor, return shipping extra.

Briggs & Stratton 7hp through 12.5hp single cylinder flathead aluminum block engine (horizontal or vertical shaft) rebuild to OEM factory specifications @ 3,600 governed rpms (for general yard work only)

  • Your engine: $450±, includes our parts and labor, return shipping extra.
    • Parts and labor includes new rings, professional valve job, clean and rebuild carburetor, new gaskets, oil seals and whatever else it may need.

Briggs & Stratton 16, 18 & 20hp flathead/opposed twin cylinder aluminum block engine (horizontal or vertical shaft) rebuild to OEM factory specifications @ 3,600 governed rpms (for general yard work or mild competitive pulling):

  • Your engine: $600-$700±, includes our parts and labor, return shipping extra.
    • Parts and labor includes new rings, professional valve job, clean and rebuild carburetor, new gaskets, oil seals and whatever else it may need.
Tecumseh 3hp to 10hp flathead aluminum block engine (horizontal or vertical shaft) rebuild to OEM factory specifications @ 3,600 governed rpms (for general yard work only)
  • Your engine: $75 - $600± (depending on size of engine and extent of wear), includes our parts and labor, return shipping extra.

Tecumseh 8hp (VH80/HH80), 10hp (VH100/HH100), 12hp (HH120/OH120), 14hp (OH140), 15hp (OH150), 16hp (OH160) & 18hp (OH180) flathead & OHV cast iron block engines (horizontal & vertical shaft) rebuild to OEM factory specifications @ 3,600 governed rpms (for general yard work only)

  • Your engine: $500 - $800± (depending on size of engine and extent of wear), includes our parts and labor, return shipping extra.
    • Parts and labor includes new rings, professional valve job, clean and rebuild carburetor, new gaskets, oil seals and whatever else it may need.

Lawn-Boy 2-cycle engine (lawn mower models C, D & F) rebuild to OEM factory specifications @ 3,200 governed rpms (for general yard work only)

  • Your engine: $100± (depending on model of engine and extent of wear), includes our parts and labor, return shipping extra.
    • Parts and labor includes new rings and/or piston, clean and rebuild carburetor, new gaskets, oil seals and whatever else it may need.
Kohler 4hp, 7hp and 8hp flathead cast iron block engine rebuild to OEM factory specifications @ 4,000 governed rpms (for general yard work or mild competitive pulling)
  • Your engine: $400±, includes our parts and labor, return shipping extra.
    • Parts and labor includes: bore cylinder (if needed); install new piston/rings; regrind crank journal (if needed); resize connecting rod or install new .010" rod (if needed); regrind valves/seats; rebuild carburetor; resurface cylinder head; install new gaskets/oil seals and tune-up kit.

Kohler Stroked 10hp (K301 thick-wall block) or destroked 12hp (K301) cast iron flathead block, AKA "Generic models K261 or K271" engines.

  • Your engine - build to stock specifications @ 4,000 governed rpms (for general yard work or mild competitive pulling)
    • $1,400±, includes our parts and labor, return shipping extra.
  • Your engine - Stock-Appearing, build to the max @ up to 4,000± rpms (for heavy yard work or competitive pulling)
    • $1,800±, includes our parts and labor, return shipping extra.

Kohler 10hp, 12hp or 14hp cast iron flathead block engine rebuild to OEM factory specifications @ up to 4,000 governed rpms (for general yard work or mild competitive pulling)

  • Your engine: $550±, includes our parts and labor, return shipping extra. But if the engine has a broken connecting rod, and internal damage has resulted, the price will be $700± for additional parts & labor.
    • Parts and labor includes: bore cylinder (if needed); install new piston/rings; regrind crank journal (if needed); fit connecting rod w/bearing inserts (if needed); regrind valves/seats; rebuild carburetor; resurface cylinder head; install new gaskets/oil seals and tune-up kit.

Kohler 10hp, 12hp or 14hp cast iron flathead block Stock-Appearing engine build to the max @ up to 4,000 rpms (for heavy yard work or competitive pulling)

  • Your engine: $1,200±, includes our parts and labor, return shipping extra.
    • Parts and labor includes: rework stock valves; install our reground high torque, low rpm cast camshaft; port/polish; rework #26 carburetor; mill OEM cylinder head; regrind crank journal (if needed); fit stock connecting rod w/bearing inserts; stock piston assembly; stock flywheel w/3/4 fins removed (dynamically precision balanced) and recondition gear starter.

Kohler 16hp cast iron flathead block engine rebuild to OEM factory specifications @ up to 4,000 governed rpms (for general yard work or mild competitive pulling)

  • Your engine: $600±, includes our parts and labor, return shipping extra. But if the engine has a broken connecting rod, and internal damage has resulted, the price will be $750± for additional parts & labor.
    • Parts and labor includes: bore cylinder (if needed); install new piston/rings; regrind crank journal (if needed); fit connecting rod w/bearing inserts (if needed); regrind valves/seats; rebuild carburetor; resurface cylinder head; install new gaskets/oil seals and tune-up kit.

Kohler 16hp (K341) cast iron flathead block Stock-Appearing engine build to the max @ up to 4,000± rpms (for heavy yard work or competitive pulling)

  • Your engine: $1,300±, includes our parts and labor, return shipping extra.
    • Parts and labor includes: rework stock valves; install our reground high torque, low rpm cast camshaft; port/polish; rework #26 carburetor; mill OEM cylinder head; regrind crank journal (if needed); fit stock connecting rod w/bearing inserts; stock piston assembly; stock flywheel w/3/4 fins removed (dynamically precision balanced) and recondition gear starter.

Kohler 18hp (K361) cast iron single cylinder OHV block engine.

  • Your engine - rebuild to OEM factory specifications @ up to 4,000 governed rpms (for general yard work or mild competitive pulling): $800±, includes our parts and labor, return shipping extra.
    • Parts and labor includes: bore cylinder (if needed); install new piston/rings; fit connecting rod w/bearing inserts (if needed); regrind valves/seats; rebuild carburetor; resurface cylinder head; install new gaskets/oil seals and tune-up kit.
  • Your engine - Stock-Appearing build to the max @ up to 4,000± governed rpms (for heavy yard work or competitive pulling): $1,000±, includes our parts and labor, return shipping & crating extra.
    • Parts and labor includes: rework stock valves; install our reground high torque, low rpm cast camshaft; port/polish; rework #26 carburetor; mill OEM cylinder head; fit stock connecting rod w/bearing inserts; stock piston assembly; stock flywheel w/3/4 fins removed (dynamically precision balanced) and recondition gear starter.

Kohler 17hp, 19hp K-series & 18hp, 20hp M18 & M20 Magnum opposed twin cylinder flathead engines. Rebuild to OEM factory specifications @ up to 4,000 governed rpms (for general yard work or mild competitive pulling).

  • Your engine - $600±, includes our parts and labor, return shipping extra.
    • Parts and labor includes: install new rings; regrind valves/seats; rebuild carburetor; resurface cylinder heads; install new gaskets/oil seals and tune-up kit.

Kohler 25hp V-Twin engine. Rebuild to OEM factory specifications @ up to 4,000 governed rpms (for general yard work or mild competitive pulling).

  • Your engine - $700±, includes our parts and labor, return shipping extra.
    • Parts and labor includes: install new rings; regrind valves/seats; rebuild carburetor; resurface cylinder heads; install new gaskets/oil seals and tune-up kit.
Competitive Pulling Engine Refreshing Service Ê This service is for engines that have been previously rebuild or built for pulling, and needs the basic parts to revive the power. It is not a complete rebuild.
  • Refresh Stock 10-16hp Kohler pulling engine. Includes new rings, lap valves, adjust valve clearance, new rod bearing, clean or rebuild carburetor, new up-to-date Lakota, MWSC or Vogel torque camshaft and new gaskets. $200.00 labor. Parts are extra charge.

  • Refresh Stock-Altered 12-16hp Kohler engine. Includes new rings, lap valves, adjust valve clearance, new rod bearing, clean or rebuild carburetor, new up-to-date Lakota, MWSC or Vogel camshaft and new gaskets. $300.00 labor. Parts are extra charge. Add $200.00 labor to machine the valve cavities deeper in billet cylinder head if a new camshaft with more lift will be installed.

  • Refresh NQS 30 c.i. or Missouri Super-Stock 16hp Kohler engine. Includes new rings, lap valves, adjust valve clearance, new rod bearing, clean or rebuild carburetor, new up-to-date Lakota, MWSC or Vogel camshaft, new gaskets. $400.00 labor. Parts are extra charge. Add $200.00 labor to machine the valve cavities deeper in billet cylinder head if a new camshaft with more lift will be installed.

  • Refresh 50.5 c.i. 16hp Kohler engine. Includes new rings, lap valves, adjust valve clearance, new rod bearing, new up-to-date Lakota, MWSC or Vogel camshaft, clean or rebuild carburetor, new gaskets and oil seals. $500.00 labor. Parts are extra charge. Add $200.00 labor to machine the valve cavities deeper in billet cylinder head if a new camshaft with more lift will be installed.

Competitive Stock-Class Pulling Engines Ê Top of page

"Built to the max" 10hp (K241), 12hp (K301), 14hp (K321) or 16hp (K341) Kohler engines built by Brian Miller. These engines have a 5,000 rpm limit with an operating cast iron governor gear; high torque camshaft; high-flow reworked stock size valves; #26 Kohler carburetor bored to 1", reworked & set up for gas; enlarged ports & polished; 2nd generation cylinder head milled .050"; connecting rod bored .020" offset for piston pop out with quality bearing inserts; 9-1/2" cast flywheel with majority of fins removed & dynamically precision rebalanced; upper mount gear starter, header pipe and conventional Kohler point ignition system. These are very powerful engines! These engines are for Cub Cadet garden tractors, and built and designed for competitive pulling in the Stock classes only, not yard work. No charging systems.

New lower prices, same quality and performance.

  • 10hp (dyno'd at 17hp and 22 ft. lbs. of torque @ 4,000 rpm.) $1,650.00
  • 12hp (dyno'd at 22hp and 28 ft. lbs. of torque @ 4,000 rpm.) $1,980.00
  • 14hp (dyno'd at 25hp and 32 ft. lbs. of torque @ 4,000 rpm.) $2,310.00
  • 16hp (dyno'd at 27hp and 36 ft. lbs. of torque @ 4,000 rpm.) $2,640.00
  • Shipping and crating not included in prices above.
  • Add $30.00 for a chrome plated OEM crankcase breather cover.
  • Add $150.00 for a chrome plated OEM flywheel shroud.
  • Financing available. A minimum $200.00 security deposit is required on all engine orders until it's paid in full. This is to secure your engine so no one else can come along and purchase it.
Competitive All-Out Pulling Engines Ê Top of page

Kohler 10hp, 12hp or 14hp Stock-Altered cast iron block flathead engine. Parts and labor includes: rework stock valves or install stainless steel or titanium valves (customer's preference); latest design Lakota, MWSC or Vogel Stock-Altered cast or steel camshaft; header pipe kit; port/polish; rework #26 carburetor; OEM or stock-appearing billet cylinder head (customer's preference); Lakota, MWSC or Vogel billet connecting rod; Arias or JE piston assembly - dynamically precision balanced to a steel crankshaft with a 9-1/2" steel flywheel and high torque gear starter.

  • Your engine: $2,400±, includes our parts and labor, return shipping extra.
  • Our engine: $3,000±, includes our parts and labor, shipping & crating extra.

NQS 16hp Stock-Altered Kohler cast iron block flathead engine. Parts and labor includes: Jones aftermarket block; rework stock valves or install stainless steel or titanium valves (customer's preference); header pipe kit; latest design Lakota, MWSC or Vogel Stock-Altered cast or steel camshaft (customer's preference); port/polish; rework #26 gas or alcohol carburetor (NQS .995" legal); OEM or stock-appearing billet cylinder head (customer's preference); Lakota, MWSC or Vogel billet connecting rod; Arias or JE piston assembly - dynamically precision balanced to a steel crankshaft with a 9-1/2" steel flywheel and high torque gear starter.

  • Your engine: $4,800±, includes our parts and labor, return shipping extra.
  • Our engine: $5,200±, includes our parts and labor, shipping & crating extra.

NQS Outlaw 30ci (12hp) Kohler cast iron block flathead engine. Parts and labor includes: Jones aftermarket block; oversize stainless steel or titanium valves (customer's preference); latest design Lakota, MWSC or Vogel steel camshaft w/steel gear; header pipe kit; port/polish; 44mm Mikuni carburetor with stand-off; billet cylinder head; Lakota, MWSC or Vogel billet connecting rod; Arias or JE piston assembly - dynamically precision balanced to a steel crankshaft with a 9-1/5" steel flywheel and high torque gear starter.

  • Your engine (Stock Stroke): $6,000±, includes our parts and labor, return shipping extra.
  • Your engine (Stroker): $6,500±, includes our parts and labor, return shipping extra.
  • Our engine (Stock Stroke): $7,000±, includes our parts and labor, shipping & crating extra.
  • Our engine (Stroker): $7,500±, includes our parts and labor, shipping & crating extra.

NQS Sport-Stock ([37ci] 16hp Missouri Super-Stock, .060" overbore w/stock stroke) Kohler cast iron block flathead engine. Parts and labor includes: OEM Kohler block; oversize stainless steel or titanium valves (customer's preference); latest design Lakota, MWSC or Vogel steel camshaft w/steel gear; header pipe kit; port/polish; rework 1.2" alcohol carburetor; billet cylinder head; Lakota, MWSC or Vogel billet connecting rod; Arias or JE piston assembly - dynamically precision balanced to a steel crankshaft with a 9-1/5" steel flywheel and high torque gear starter.
NOTE: The stock stroke/.060" overbore/37 cubic inch pulling engine is very popular here in Missouri,and it's been here for many years. It's a competitive class of tractors and they put on a display of speed and power to the spectators. We in Missouri call it the "16hp Super-Stock", but most pullers in other states call it the "Missouri Super-Stock".

  • Your engine: $4,500±, includes our parts and labor, return shipping extra.
  • Our engine: $5,000±, includes our parts and labor, shipping & crating extra.

NQS Super-Stock (Missouri Modified) 50.5ci (16hp) Kohler cast iron block flathead engine. Parts and labor includes: Jones aftermarket block; oversize stainless steel or titanium valves (customer's preference); latest design Lakota, MWSC or Vogel steel camshaft w/steel gear; header pipe kit; port/polish; 44mm Mikuni carburetor w/stand-off; billet cylinder head; Lakota, MWSC or Vogel billet connecting rod; Arias or JE piston assembly - dynamically precision balanced to a steel crankshaft with a 9-1/5" steel flywheel and high torque gear starter.
NOTE: The NQS Super-Stock/50.5 cubic inch pulling engine is very popular here in Missouri too, and it's been here for many years. It's a competitive class of tractors and they put on an amazing display of speed and power to the spectators. We in Missouri call it the "16hp Modified", but most pullers in other states call it the "50 c.i. class".

  • Your engine: $7,500±, includes our parts and labor, return shipping extra.
  • Our engine: $8,500±, includes our parts and labor, shipping & crating extra.

NOTES:

IMPORTANT! If you decide to ship your engine to us, enclose it in a sturdy wooden crate with cushioning surrounding the engine, and the crate securely fastened onto a wooden pallet. Do not use a cardboard box! To build a crate, start with 2" x 2" frame work with a skid pallet on the bottom (so a forklift can pick it up without damage), fasten the oil pan of the engine to the bottom of the crate (pallet), use either 1/4" plywood or paneling to cover the crate, place some heavy pieces of Styrofoam or heavy cardboard around and above the engine to help cushion it during transport, and fasten everything on and in the crate with sheet rock screws. Or if you bring an engine to us in person, sit it in an old tire to keep it from moving around during transportation. And please let us know first so we can expect your arrival. It'll be best to have everything on the engine that can wear so we can repair them too, and make the necessary adjustments.

To ship your engine to us, first off, do not use the US Mail Service, UPS or FedEx Express! Their employees are trained in handling lightweight packages (weighing up to 70 lb.) and the heavier items tend to get damaged with their kind of handling. They are very hard on heavy packages when they handle them. The packages are placed on conveyor-belt systems and they seem to always drop the heavy ones off of the elevated conveyors, which usually destroys whatever is inside them.

Here's a great web site that calculates freight charges. Go here: http://www.shipgooder.com/ and type in your zip code, our zip code (65203) and the crated weight of a typical complete 10-16hp Kohler engine (145 lb.).

If you decide to ship your engine to me, please crate it well. We're authorized FedEx Ground (for anything up to 150 lbs.) and FedEx Freight (for anything over 150 lbs.) shippers because they've been proven to be the lowest cost, most gentle and reliable shipping companies. Contact your local FedEx Ground for more details. Or you can use a major trucking company with a good reputation for shipping heavy, fragile objects. Look in the Yellow Pages and ask around. The reason we say this is because we once returned a rebuilt engine that was crated very well to a customer using a well-known shipping company, and it was almost destroyed in shipping when he received it. You'll have better success with shippers such as FedEx Ground, FedEx Freight, Roadway, etc. Freight company employees are trained in handling heavy packages plus they use tow motors to move the freight around, not like UPS or FedEx Express with their uncaring "gorillas" unloading and loading the trucks. The approximate shipping weight of a crated 7 and 8hp Kohler engine is 100 lbs. And 10-16hp single cylinder cast iron Kohler engine is 145 lbs.

To ship an engine, freight companies require it to be in an enclosed wooden or plastic crate, or a sturdy cardboard box. It's best to securely fasten it with the oil pan bolts on a pallet made of 2 x 4's and fasten the boards together with long drywall screws, not nails. Then place a 2 x 2 wooden frame around the pallet and fasten 1/4" plywood with a 2 x 2 frame work. Run cross-braces which encompasses the top portion of the cylinder of the block. This will support or stabilize the top of the block and keep the engine from getting ripped off the base. Put a lid on the top and then load it in the trucking company's truck when it arrives with a tow motor. You shouldn't have any problems shipping an engine this way.

To ship a transaxle, this is easier. They don't require an enclosed crate. Just place the transaxle on the center of a wooden pallet and stretch wrap (use low-cost ratchet nylon tie-downs) to securely fasten it to the pallet. Use at least 6 layers of stretch wrap or several tie-downs. This should work really well. The shipping weight of a Cub Cadet cast iron case transaxle when strapped to a wooden pallet is approximately 215 lbs.

IMPORTANT! When bringing or sending your engine, transaxle or any other part(s) to us, please include a note with your name, address, phone number and a description of what you want done. Or if you'd prefer to deliver your engine or transaxle personally to us, we're located at 1501 W. Old Plank Rd. | Columbia, MO 65203 USA. Find us here: Directions to our shop | Yahoo! Maps, 1501 W. Old Plank Rd., Columbia, MO | 1501 West Old Plank Road, Columbia, MO - Google Maps or Map of 1501 West Old Plank Road, Columbia, MO by MapQuest.


Please contact us if you're interested in any of the above parts or service.


Warranty: Since the products we sell are used under extreme high-performance conditions, there is no "100% warranty" on most parts, engines or engine rebuilds. If you do have a problem with anything we sold or repaired for you, please feel free to contact me. Parts ordered from this website should be installed and used by persons that are familiar with mechanical parts and their proper use and installation. Consult our garden tractor tips and tricks web pages of the parts for its proper use and mechanical requirements. Customer assumes responsibility for maintaining products and/or equipment in safe operating condition.

Warranty on our engines and engine rebuilds depend on what goes wrong with the engine. Typically, if the engine is taken care of (regular oil changes, proper ignition timing, valve adjustments and use of correct octane fuel), our engines are quite reliable and will last for many years. So if an engine has been taken care of, we will stand behind our engines for a period of one pulling season or one mowing season.

For other high performance engine builders, contact either Lakota Racing - Quarter Scale Performance (http://www.lakotaracing.com), Midwest Super Cub (http://www.midwestsupercub.net) or Vogel Manufacturing Company (http://www.vogelmanufacturing.com).


Contact:
A-1 Miller's Performance Enterprises | 1501 W. Old Plank Rd. | Columbia, MO 65203 USA | Phone: 1-573-875-4033. Please call any day, 9am to 5pm, Central time. If no answer, please try again later. (When speaking with Brian, please be patient because I stutter.) Fax: 1-573-449-7347. E-mail: pullingtractor@aol.com. You can also contact us through Yahoo! Messenger: Find us here: Directions to our shop | Yahoo! Maps, 1501 W. Old Plank Rd., Columbia, MO | 1501 West Old Plank Road, Columbia, MO - Google Maps or Map of 1501 West Old Plank Road, Columbia, MO by MapQuest.

If you're interested in placing an order with us, please call or email us with your name, complete mailing address and phone number and so we can figure the shipping cost & delivery confirmation. For payment, we accept cash (in person), money orders, cashier's checks, MasterCard, VISA, Discover, American Express (your credit/debit card will be charged the same day the items are shipped) and Western Union Money Transfer. Or you can pay us through PayPal (our PayPal account name is our email address. And be sure to mention in PayPal a description of what the payment is for.) If sending a money order, please include a note in the envelope with your name, complete mailing address, phone number and a description of what the payment is for. Our mailing address and phone number are below. And we will send you the parts as soon as we receive your payment or when the order is processed.

To figure the shipping cost, we weigh the package with the parts, then we go online to the USPS Postage Rate Calculator web site. We type in the weight, our zip code and your zip code, and then it shows us the prices for various ways to ship the package. We choose US Postal Service because we believe it's the most fastest, economical and reliable method.

shipping & handling: (United States and it's territories)

Ship to Canada and elsewhere around the world:

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(When placing an order through PayPal, please specify which parts you need.)

To make a payment to us through PayPal, go to PayPal's web site ( https://www.paypal.com/ ) and click Send Money. Type in (or copy and paste this:) pullingtractor@aol.com and then follow the directions. Be sure to mention in PayPal a description of what the payment is for. After you've finished, PayPal will then send us an email notifying us that you have paid us for the product(s) or services and amount entered. We then go to their web site and direct PayPal to deposit the money into our bank account. And we will send the parts to you as soon as we receive your payment. But we may have to order some of the parts if they're not in stock, which should take a few days. In that case, we will send you the parts as soon as they come in.. PayPal protects your financial privacy and security. With PayPal, privacy is built in. It's a way for you to pay without exposing their financial information.

IMPORTANT - When sending your part(s) to us for rebuilding or repair, package everything securely so the item(s) won't get damaged in shipping and please include a note in the box with your name, mailing address, phone number (in case we have any questions) and a description of what you want done. When the work is completed, we'll either call you or email you an invoice with the total including shipping & handling. And for payment, we accept money orders, cashier's checks, VISA, MasterCard, Discover and PayPal, whatever you prefer. We will return the parts to you as soon as we receive your payment.

Linked pages to our parts & services:

A-1 Miller's Performance Enterprises
Offering Quality Products and Professional Workmanship at Reasonable Prices!

Engine Rebuild Parts, Engine Rebuilds, Build-ups, Exhaust Header Pipe Kits & Machine Shop Services

Carburetor, Fuel System Parts & Machine Shop Services

Clutch Parts, Rebuilds & Machine Shop Services

Transmission, Transaxle Parts, Rebuilds & Machine Shop Services

Steering, Chassis Parts & Machine Shop Services

Ignition, Electrical and Crank Trigger Electronic Ignition Parts and Kits

Miller's Pulling Sled Services

Back to A-1 Miller's Performance Enterprises and Specialty Shop Information

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