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Crankshaft, Stroker, GX390 & 420 Predator, 72mm (+.315"), 420-479cc: Aftermarket Core
Crankshaft, Stroker, GX390 & 420 Predator, 72mm (+.315"), 420-479cc: Aftermarket Core
 
Our Price: $129.99

Stock Status:In Stock

Part #: 72CRANK

Balancing

Electronic Balance Crankshaft (With Mallory) [+$152] **Please email or make an order comment giving the balancing specs. We require either the piston, rod, & wrist pin part # or the weights of each part. NR Racing must have these weights to balance the crank. Allow 1 to 3 weeks for balancing.

Qty:
Description -
 
72mm Stroker Crankshaft Producing up to 479cc - GX390 & 420 Predator
This is a Chinese OHV core that fits Honda GX340, GX390, or any of the 420, 440, & 460cc Chinese OHVs. Gear for balance shaft and bearing included!

438cc with 88mm Bore (GX390)
458cc with 90mm Bore (420 Predator)
479cc with 92mm Bore

*Warning: Piston may need to be cut approximately .060" when using genuine Honda blocks and pistons. Clearance may be required. This is not a bolt-in part, but is for experienced engine builders.

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