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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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Gasket, Head, Copper for GX200, 6.5 Chinese OHV's, & 212 Predators
Our Price: $11.99

Copper Head Gaskets

Select for the following sizes:
68 mm (2.682" pistons, GX200s & 6.5 OHV)
70mm (2.756" pistons, 212 Predators)
72mm (2.815" pistons)
73mm (2.87" pistons)
76mm (2.992"+ pistons)

All sizes available in .016" Thick or .032" Thick

Gasket, Head, Fiber w/ Fire ring, 3.0" (76mm) Bore, .045 thick
Our Price: $22.99

Best sealing of all the head gaskets we sell
Fits 212 Predators and GX200s/6.5 Chinese OHVs with 3.0" Bores.
Sleeve, 3.102 (for 3.0 piston)
Our Price: $36.99

Sleeve for 2.992 & 3" Pistons

OD 3.1035" ID 2.883

Dimensions is approximate and may vary by several thousands
Sleeve, 3.00 (for 2.77 piston)
Our Price: $42.99

Use for 2.7 to 2.850 bore diameter.
OD 3.0030 ID 2.720
Dimension is approximate and may vary by several thousands
Crankshaft, Stroker, GX390 & 420 Predators, 69mm (+.200), 420cc to 460cc : Aftermarket Core
Our Price: $67.99

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.
Crankshaft, Stroker, GX200 & 6.5 OHV (+.060), Aftermarket Core
Our Price: $148.99

.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
Crankshaft, Stroker, GX160 (+.160"), 180cc, QX 3/4"
Our Price: $169.99

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!!!!!!
Crankshaft, Stroker, GX160 (+.160"), 180cc, RH (2 to 1 gearbox)
Our Price: $179.99

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!!!!!!
Crankshaft, Stroker, GX160 (+.160"), 180cc, HX (6 to 1 gearbox)
Our Price: $184.99

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!!!!!!
Crankshaft, Stroker, Honda GX270 (+.160"), 292cc, QA
Our Price: $199.99

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

   
 

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