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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 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)

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

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: $67.99
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: $149.99
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)

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)

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

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
Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Clone Crank & Piston

202+cc engine kit.

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

Clone Crank (weld and ground),
ARC Billet Rod,
Clone Flat Top Piston w/Rings,
Wristpin & Clips.


Puts piston at TDC, Increases displacement by 5 cc or more. Increases compression ratio approx 1.0 points. Designed to leave piston .005 in the hole, but due to variation of blocks, piston may need to be shaved. Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required (58 grams total , 29 per counterweight for ARC rod and FT piston) , Note: Not included unless specified.


Our Price: $219.99
Engine Kit, 218cc for Hemi Predators

218+cc engine kit.
OEM Hemi Crankshaft welded and ground producing .060 more stroke, Includes

ARC Billet Rod, Flat Top Piston, Rings, Wristpin & Clips.

Puts piston at TDC, Increases displacement by 6 cc or more. Increases compression ratio approx 1.0 points. Designed to leave piston .005 in the hole, but due to variation of blocks, piston may need to be shaved. Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required (58 grams total , 29 per counterweight for ARC rod and FT piston) , Note: Not included unless specified.

FITS HEMI PREDATORS. REQUIRES HEMI STYLE FLYWHEEL.
USES HONDA ROD JOURNAL

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

180cc Stroker Kit: (+.160") for GX160s,
Includes

  • Welded & stroked Crank
  • Rod
  • Piston/Rings
  • Wristpin, and
  • Clips.

Std Bore. Bolt in kit, Produces approx 180cc using Honda 160 Block.
All parts are genuine Honda.
BALANCING HIGHLY RECOMMENDED.

Special Order* Option of 3/4" output shaft or splined shaft (for 6 to 1 gear box).

Our Price: $249.99
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
Engine Kit, 218cc for Old Style Predators,

218+cc engine kit. GENUINE HONDA COMPONENTS

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

ARC Billet Rod, Flat Top Piston, Rings, Wristpin & Clips.


Puts piston at TDC, Increases displacement by 6 cc or more. Increases compression ratio approx 1.0 points. Designed to leave piston .005 in the hole, but due to variation of blocks, piston may need to be shaved. Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required (58 grams total , 29 per counterweight for ARC rod and FT piston) , Note: Not included unless specified.

FITS OLD STYLE PREDATORS

Our Price: $259.99
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

214+cc engine kit for GX200s & 65. OHVs using 2.756 bore

Genuine Honda Crankshaft welded and ground producing .060 more stroke, Includes Crank, Billet Rod, Flat Top Piston, Rings, Wristpin & Clips. Puts piston at TDC, Increases compression ratio over 1.0 points. Designed to leave piston .005 in the hole, but due to variation of blocks, piston may need to be shaved. Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required (60 grams total , 30 per counterweight for ARC rod and FT piston) , Note: Not included unless specified.

Available in new style Predator (requires 6626 or 6602PH flywheels) or Old Style (requires 6625 or 6602P flywheels)

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

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

Our Price: $289.99
Engine Kit, GX390 Stroker, 420 cc (+.200), Cast Crank

420cc Engine kit. for GX390s

Choice of

  • Aftermarket Cast Crank with .200 More Stroke, producing 420cc
  • ARC Billet Rod
  • OEM Honda Piston machined to fit kit
  • OEM Honda Rings
  • Wristpin & Clips

Puts piston at TDC, Note: This is not a bolt in kit, but for experienced engine builders.

Available unbalanced or Fully Balanced.

Also available for GX340, please email.

Our Price: $299.99
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: $305.99
Short Block, Racing, Predator

Predator Racing Shortblock, Several Options available

Our Price: $308.99
Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Honda Crank & Piston

202+cc engine kit.

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

Genuine Honda Crank (welded and ground),
ARC Billet Rod,
Honda Flat Top Piston w/Rings,
Wristpin & Clips.


Puts piston at TDC, Increases displacement by 5 cc or more. Increases compression ratio approx 1.0 points. Designed to leave piston .005 in the hole, but due to variation of blocks, piston may need to be shaved. Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required (58 grams total , 29 per counterweight for ARC rod and FT piston) , Note: Not included unless specified.


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

Honda GX160 Racing Shortblock, Several Options available

Our Price: $329.99
Engine Kit, 2182 to 227 cc Kits, 2.186 (+.060) Stroke, Forged Piston -Predators

218 to 227 cc KIT, .060 Stroker Crank
2.756, 2.77 or 2.815 piston

Includes Welded and Ground OEM Predator Crank, Billet Rod, Choice of Forged Piston, & Rings, HD Wristpin & Clips. Block or piston may require milling to achieve proper piston to deck height.
Block clearancing may be needed.

Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required Not included unless specified.

Approx cc.

218 cc with 2.756 Piston
220 cc with 2.776 Piston
227 cc with 2.815 Piston

These are new style Predator Cranks and require 6626 or other Hemi Flywheel. Old Style Cranks available on request (extra change applies). Cranks use Honda Size Journals

Our Price: $329.99
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,
2.675, 2.68, 2.70, 2.77 or 2.815 piston

Includes Welded and Ground Honda Crank, Billet Rod, Choice of Forged Piston, & Rings, HD Wristpin & Clips. Block or piston will require milling to achieve proper piston to deck height.
Block clearancing may be needed.

Note: This is not a bolt in kit, but for experienced engine builders.

Balancing is required Not included unless specified.

Approx cc.
202 cc with 2.675
206 cc with 2.702 Piston
214 cc with 2.756 Piston
217 cc with 2.776 Piston
223 cc with 2.816 Piston

Our Price: $379.99
Engine Kit, GX270, 292cc (+.160) Stroker - Q (1" Shaft)

292+cc engine kit for GX270s

OEM Crankshaft welded and ground producing .160 more stroke, Includes Crank, Billet Rod, choice of Piston, & Rings, Wristpin & Clips. Puts piston at TDC, Note: This is not a bolt in kit, but for experienced engine builders.
Also available for GX240s, please email.

Balancing is required Not included unless specified.

Fits 1" shaft (Dry Clutch Motors)

Our Price: $389.99
Short Block, Racing - GX200 Honda

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

Our Price: $449.99
Engine Kit, GX270, 292cc (+.160) Stroker - R (2 to 1 Gearbox Cranks)

292+cc engine kit for GX270s

OEM Crankshaft welded and ground producing .160 more stroke, Includes Crank, Billet Rod, choice of Piston, & Rings, Wristpin & Clips. Puts piston at TDC, Note: This is not a bolt in kit, but for experienced engine builders. Also available for GX240s, please email.

Fits 2 to 1 gear box engines

Balancing is required Not included unless specified.

Our Price: $469.99
Engine Kit, 214 to 236cc, 2.310 Billet Stroker Crank, Wiseco Piston - GX200 & 6.5 Chinese OHV's

214 to 232cc KIT

Includes

  • + .175 Billet Steel Stroker Crank,
  • Wiseco or JE Forged Piston,
  • 3.625 Billet Rod,
  • rings,
  • HD wristpin, and
  • clips.

Sleeve not included (typically not required for 2.815 bore or less)
Top of piston must be cut and block honed or bored to fit. Block must be significantly Clearanced.

This is not a bolt in kit, but for experienced engine builders. Balancing not required but recommend

214cc with 2.670 Piston (no honing or boring required, drop in)
215cc with 2.680 Piston (must hone block .005)
217cc with 2.707 Piston (must bore block)
225cc with 2.757 Piston (must bore block)
228cc with 2.770 Piston (must bore block)
236cc with 2.815 Piston (must bore block)

Our Price: $479.99
Engine Kit, 226 to 236cc, 2.310 Billet Stroker Crank, Wiseco Piston - 212 Predators

225 to 236cc KIT for 212 Predators

Includes:

  • + .175 Billet Steel Stroker Crank,
  • Wiseco or JE Forged Piston,
  • 3.625 Billet Rod,
  • rings,
  • HD wristpin, and
  • clips.

Sleeve not included (typically not required for 2.815 bore or less)

Top of piston must be cut and block honed or bored to fit. Block must be significantly Clearance. Requires Chinese OHV or Honda flywheel. Will NOT work with Predator flywheels

This is not a bolt in kit, but for experienced engine builders. Balancing not required but recommend

225cc with 2.757 Piston (must bore block)

228cc with 2.770 Piston (must bore block)

236cc with 2.815 Piston (must bore block)

Our Price: $479.99
Crankshaft, Stroker, GX390 +.200 Billet Steel (460cc with 92mm Bore)


Billet Steel 70 mm (+200) Crankshaft producing up to 460cc.

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: $489.99
Engine Kit, GX390 Stroker, 414 cc (+.160), Honda Crank

414cc Engine kit. for GX390s


  • Genuine Honda Crank welded and ground for +.160 more Stroke, producing 414cc
  • ARC Billet Rod
  • OEM Honda Piston machined to fit kit
  • OEM Honda Rings
  • Wristpin & Clips

Puts piston at TDC, Note: This is not a bolt in kit, but for experienced engine builders.

Available unbalanced or Fully Balanced.

Also available for GX340, please email.

Our Price: $499.99