S&S Cycle 310-1226 129in. Power Package Engine Performance Kit - Wrinkle Black engine-crankcase-components 1999-2004 Honda TRX400EX Sportrax

1999-2004 Honda TRX400EX Sportrax

2012-2013 Arctic Cat ProClimb M 1100

so there is no machine work done and very little down time

Constructed using long life brushes and bearings for smooth and accurate shifting

S&S Cycle 310-1226 129in. Power Package Engine Performance Kit - Wrinkle Black engine-crankcase-components 1999-2004 Honda TRX400EX SportraxWrinkle black w o highlighted fins and black pushrod tubes, chain drive cam. Transform 107in. oil cooled M8 into 129in. with no case machining required. Big bore cylinders come with matching cam, cam plate and oil pump. Independent scavenge sections for flywheel cavity and cam chest. Magnet in cam chest to help prevent debris from entering oil pump. Feature high performance conical single wire S&S valve springs. Original engine serial numbers are