128" Power Package Engine Performance Kit - Gear 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 entering the oil pump
Increased oil flow capacity on both the oil feed and scavenge side
Adjustable pressure relief valve can be adjusted with the unit installed in the engine
Quickee pushrods with chrome pushrod tubes
S&S premium tappets
S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
Improve tappet stability in high-lift, high-rpm situations
S&S 550 cams designed for big bore applications
S&S valve springs work with cams up to .605" lift
High-performance conical single-wire spring design
All necessary gaskets, bearings, and hardware for bolt-on installation is included
Made in the U.S.A.