Seller notes

72mm Stroker Crankshaft Producing up to 460cc - Honda GX390 & 420 PredatorThis is a Chinese OHV core that fits Honda GX340, GX390, or any of the 420cc & 440cc Chinese OHV engines. 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 builder...

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