S&S CYCLE Cylinder - Evolution Big Twin - Wrinkle Black - Highlighted Fins 91-7710

Cylinder - Evolution Big Twin - Wrinkle Black - Highlighted Fins 3-1/2" Bore cylinders are for big twins with stock, S&S Performance, or Super Stock heads, Includes dowel pins, Made in the U.S.A., Individual cylinders and cylinder sets without pistons are bored slightly under normal size and are not honed.