Kit includes complete cylinder head, cylinder, piston, rings, piston pin, cir clips, head gasket, and base gasket.


*You may need to modify your engine case to accommodate the larger cylinder.

• Cylinder Bore: Choose from 39mm, 47mm or 50mm
• Cylinder Sleeve Outer Diameter: 45mm (39mm bore) / 52.8mm (47mm bore) / 53.95mm (50mm bore)
• Wrist Pin Diameter: 13mm
• Total Piston Height: 34.4mm
• Compression Height (from center of wrist pin hole to top edge of piston): 17.25mm
• Intake and Exhaust Valve Length: 64mm
• Non-Emissions Head

This product is not intended for use on public roads or land.