S&S CYCLE 128" Power Package Engine Performance Kit - Chain Drive 310-1101B Motorcycle Tires - Off Road forged big bore flattop pistons

forged big bore flattop pistons

compatible with stock or aftermarket intake systems

5" bore high tensile cast iron cylinders

Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required

S&S CYCLE 128" Power Package Engine Performance Kit - Chain Drive 310-1101B Motorcycle Tires - Off Road forged big bore flattop pistons128" Power Package Engine Performance Kit Chain Drive Big bore bolt on kit increases 114" 117" with 4 1 2" stroke M Eight with no case machining required, 4 1 4" bore cylinders with 11: 1 forged pistons, S&S oil pump cam plate with blue anodized finish, Passage plugs are removable for servicing, Independent scavenge sections for flywheel cavity and cam chest, Debris screen in both scavenge pickups, Magnet in cam chest to help prevent debris from