310-1108A 128" Power Package Engine Performance Kit

The S&S 128-inch Power Package bolts onto 114 and 117-inch Milwaukee-Eight engines with 4-1/2 inch stroke. No case machining is required. It includes 4-1/4 inch bore cylinders with 11:1 forged pistons, an S&S 550 cam, and a blue anodised billet aluminium oil pump and cam plate with independent scavenge sections, debris screens, and an adjustable pressure relief valve. Quickee pushrods with chrome pushrod tubes, premium tappets, hard-anodised black billet aluminium tappet cuffs, and conical valve springs to .605 lift are included. Made in the U.S.A. Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes. Sold as a kit.