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Big Bore & Stroker Kits Stroker Short Blocks Stroker Cranks
Big Bore Piston & Rings Sleeves Big Bore Head Gaskets

WARNING: The following parts and kits are offered for experienced engine builders. These are not bolt in kits and require extensive work for installation to include boring, sleeving, clearancing, balancing, etc. Genuine Honda blocks are recommended for all applications.


Tech References:

Approximate CCs for various combinations - Click Here

Approximate Compression Ratios for Big Bore and Stroker Kits - Click Here

Amount of Piston and/or Deck Milling required for .000 Deck Heights - Click Here

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Sleeve, 3.102 (for 3.0 piston) Sleeve, 3.102 (for 3.0 piston)

Sleeve for 2.992 & 3" Pistons

OD 3.1035" ID 2.883

Dimensions is approximate and may vary by several thousands

Our Price: $36.99
Sleeve, 3.00 (for 2.77 piston) Sleeve, 3.00 (for 2.77 piston)

Use for 2.7 to 2.850 bore diameter.
OD 3.0030 ID 2.720
Dimension is approximate and may vary by several thousands

Our Price: $42.99
Crankshaft, Stroker, GX390 & 420 Predators, 69mm (+.200), 420cc to 460cc : Aftermarket Core Crankshaft, Stroker, GX390 & 420 Predators, 69mm (+.200), 420cc to 460cc : Aftermarket Core

69mm Crankshaft producing up to 460cc. This is Chinese OHV core that fits Honda GX340, GX390 or any of the 420 & 440 Chinese OHVs. Gear for balance shaft & Bearing included!

433 cc with 88 mm Bore (GX390)
440 cc with 90 mm Bore (420 Predator)
460 cc with 92 mm Bore

Warning: Piston may need to be cut approx. .060" when using genuine Honda Blocks and Pistons.
Clearancing may be required. This is not a bolt in part, but is for experienced engine builders.

Our Price: $68.99
Crankshaft, Stroker, GX200 & 6.5 OHV (+.060), Aftermarket Core Crankshaft, Stroker, GX200 & 6.5 OHV (+.060), Aftermarket Core

.060 Stroker Crank

OEM Crankshaft welded and ground producing .060 more stroke, Puts piston at -.010 to TDC on Honda Blocks (Chinese OHVs will Vary), Crank requires balancing (58 grams total , 29 per counterweight for ARC rod and FT piston).

Allows 202 cc (std) to 207 cc (.030) with OEM Pistons

Our Price: $147.99
Crankshaft, Stroker, GX160 (+.160"), 180cc, QX 3/4" Crankshaft, Stroker, GX160 (+.160"), 180cc, QX 3/4"

180cc Stroker Crank, Genuine Honda Crankshaft welded and ground producing .160" more stroke,
Requires UT2 GX160 Piston with Standard length (3.303) Rod.

Crank requires balancing!!!!!!

Our Price: $169.99
Crankshaft, Stroker, GX160 (+.160"), 180cc, RH (2 to 1 gearbox) Crankshaft, Stroker, GX160 (+.160"), 180cc, RH (2 to 1 gearbox)

180cc Stroker Crank, Genuine Honda Crankshaft welded and ground producing .160" more stroke,
Requires UT2 GX160 Piston with Standard length (3.303) Rod.

Splined Crank fits 2 to 1 gear boxes

Crank requires balancing!!!!!!

Our Price: $185.99
Crankshaft, Stroker, GX160 (+.160"), 180cc, HX (6 to 1 gearbox) Crankshaft, Stroker, GX160 (+.160"), 180cc, HX (6 to 1 gearbox)

180cc Stroker Crank, Genuine Honda Crankshaft welded and ground producing .160" more stroke,
Requires UT2 GX160 Piston with Standard length (3.303) Rod.

Splined Crank fits 6 to 1 gear boxes

Crank requires balancing!!!!!!

Our Price: $188.99
Crankshaft, Stroker, Honda GX270 (+.160"), 292cc, QA Crankshaft, Stroker, Honda GX270 (+.160"), 292cc, QA

292cc Stroker Crank, OEM Honda Crankshaft welded and ground producing .160 more stroke, Puts piston at -.010 to TDC on Honda Blocks (Chinese OHVs will Vary),
Use with stock length rod and OEM Piston (piston must be cut .040)

Will not fit Gear box engines

Crank requires balancing

Our Price: $199.99
Crankshaft, Stroker, Honda GX200 (+.060), QX 3/4" Crankshaft, Stroker, Honda GX200 (+.060), QX 3/4"

.060 Stroker Crank, GENUINE HONDA Crankshaft welded and ground producing .060 more stroke, Puts piston at -.010 to TDC on Honda Blocks (Chinese OHVs will Vary), Crank requires balancing (58 grams total , 29 per counterweight for ARC rod and FT piston). Allows 202 cc (std) to 207 cc (.030) with OEM Pistons

Our Price: $209.99
Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Clone Crank & Piston Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Clone Crank & Piston

202+cc engine kit for 6.5 BSP Clones

BSP "Clone" Crankshaft welded and ground producing .060 more stroke, Includes rotating assembly

Our Price: $229.99
Engine Kit, 218cc for Hemi Predators Engine Kit, 218cc for Hemi Predators

218+cc engine kit for 212 Hemi Predators
OEM Hemi Crankshaft welded and ground producing .060 more stroke, Includes rotating assembly

Our Price: $239.99
Engine Kit, 180cc, GX160 + .160", Stroker Kit Engine Kit, 180cc, GX160 + .160", Stroker Kit

180cc Stroker Kit: (+.160") for GX160s. Bolt in kit

Our Price: $259.99
Engine Kit, 218cc for Old Style Predators, Engine Kit, 218cc for Old Style Predators,

218+cc engine kit for Old Style 212 Predators

OEM Crankshaft welded and ground producing .060 more stroke, Includes rotating assembly

Our Price: $259.99
Crankshaft, Stroker, Honda GX200 (+.060), RH (2 to 1 Gearbox) Crankshaft, Stroker, Honda GX200 (+.060), RH (2 to 1 Gearbox)

.060 Stroker Crank, GENUINE HONDA Crankshaft welded and ground producing .060 more stroke, Puts piston at -.010 to TDC on Honda Blocks (Chinese OHVs will Vary), Crank requires balancing (58 grams total , 29 per counterweight for ARC rod and FT piston). Allows 202 cc (std) to 207 cc (.030) with OEM Pistons

Fits 2 to 1 gearbox only

Our Price: $259.99
Crankshaft, Stroker, GX390 & 420 Predators, 414cc to 433cc: Genuine Honda Core Crankshaft, Stroker, GX390 & 420 Predators, 414cc to 433cc: Genuine Honda Core

414cc Stroker Crank, OEM Honda Crankshaft welded and ground producing +.160 more stroke for a total of 2.68" (68mm), Puts piston at -.010 to TDC on Honda Blocks (Chinese OHVs will Vary),

Use with stock length rod and OEM Piston (piston must be cut .040)

Crank requires balancing

414cc with GX390 Piston (88mm)
433cc with 420 Predator Piston (90mm)
452cc with 92mm bore


Our Price: $259.99
Engine Kit, 214cc, 2.225 (+.060) Stroker, 2.756 Bore Engine Kit, 214cc, 2.225 (+.060) Stroker, 2.756 Bore

214+cc engine kit for GX200s & 6.5 OHVs using 2.756 bore

Genuine Honda Crankshaft welded and ground producing .060 more stroke, Includes rotating assembly

Our Price: $289.99
Short Block, Racing, 6.5 OHV (Chinese) Short Block, Racing, 6.5 OHV (Chinese)

Honda GX200 or 6.5 Chinese OHV Racing Shortblock, Several Options available

Our Price: $289.99
Short Block, Racing, Predator Short Block, Racing, Predator

Predator Racing Shortblock, Several Options available

Our Price: $309.99
Engine Kit, GX390 Stroker, 420 cc (+.200), Cast Crank Engine Kit, GX390 Stroker, 420 cc (+.200), Cast Crank

420cc Engine kit for GX390s

Includes rotating assembly

Our Price: $309.99
Crankshaft, Stroker, +.175, Billet GX200 & 6.5 OHV Crankshaft, Stroker, +.175, Billet GX200 & 6.5 OHV

Billet Steel GX200 Stroker Crank, +.175 Stroker, 1" Pin Requires special ARC Rod (3.625).



Note: Requires adjustable flywheel or special offset timing key



Allows 214 to 266 cc depending on Piston

Our Price: $319.00
Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Honda Crank & Piston Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Honda Crank & Piston

202+cc engine kit for GX200s

Genuine Honda Crankshaft welded and ground producing .060 more stroke, Includes rotating assembly

Our Price: $319.99
Short Block, Racing, GX160 Honda Short Block, Racing, GX160 Honda

Honda GX160 Racing Shortblock, Several Options available

Our Price: $339.99
Engine Kit, 218 to 227 cc Kits, 2.186 (+.060) Stroke, Forged Piston -Predators Engine Kit, 218 to 227 cc Kits, 2.186 (+.060) Stroke, Forged Piston -Predators

218 to 227 cc Kit for 212 Predators, .060 Stroker Crank. Choice of 2.756 or 2.815 piston

Includes Welded and Ground OEM Predator Crank, Billet Rod, Choice of Wiseco 2 ring Forged Piston, & Rings, HD Wristpin & Clips

Our Price: $349.99
Engine Kit, 202 to 223 cc Kits, 2.186 (+.060) Stroke, Forged Piston - GX200 & 6.5 Chinese OHV's Engine Kit, 202 to 223 cc Kits, 2.186 (+.060) Stroke, Forged Piston - GX200 & 6.5 Chinese OHV's

214 to 223 cc KIT, .060 Stroker Crank with forged piston.

For GX200s and 6.5 BSP "clones". Uses Genuine Honda welded and ground crankshaft. Includes rotating assembly

Our Price: $399.99
Engine Kit, GX270, 292cc (+.160) Stroker - Q (1" Shaft) Engine Kit, GX270, 292cc (+.160) Stroker - Q (1" Shaft)

292+cc engine kit for GX270s

Includes rotating assembly

Our Price: $409.99
Engine Kit, 225cc Billet Stroker Crank w/Wiseco Piston - GX200, 6.5 Chinese OHV's, & 212 Predators - SPECIAL PRICE Engine Kit, 225cc Billet Stroker Crank w/Wiseco Piston - GX200, 6.5 Chinese OHV's, & 212 Predators - SPECIAL PRICE

Special Priced 225cc stroker kit includes all the internal parts you need to assemble a Modified, Outlaw or Open style small block.

Our Price: $449.99
Short Block, Racing - GX200  Honda Short Block, Racing - GX200 Honda

Honda GX200 or 6.5 Chinese OHV Racing Shortblock, Several Options available

Our Price: $459.99
Engine Kit, 214 to 236cc, 2.310 Billet Stroker Crank, Wiseco Piston - GX200 & 6.5 Chinese OHV's Engine Kit, 214 to 236cc, 2.310 Billet Stroker Crank, Wiseco Piston - GX200 & 6.5 Chinese OHV's

214 to 232cc Stroker Kit for GX200s with Billet Crank and Forged piston

Our Price: $479.99
Engine Kit, GX270, 292cc (+.160) Stroker - R (2 to 1 Gearbox Cranks) Engine Kit, GX270, 292cc (+.160) Stroker - R (2 to 1 Gearbox Cranks)

292+cc engine kit for GX270s using 2 to 1 gearboxes

Includes rotating assembly

Our Price: $489.99
Engine Kit, 226 to 236cc, 2.310 Billet Stroker Crank, Wiseco Piston - 212 Predators Engine Kit, 226 to 236cc, 2.310 Billet Stroker Crank, Wiseco Piston - 212 Predators

214 to 232cc Stroker Kit for 212 Predators with Billet Crank and forged piston

Our Price: $489.99