128" Power Package Engine Performance Kit<br><ul><li>Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required</li><li>4-1/4" bore cylinders with 11:1 forged pistons</li><li>S&S oil pump/cam plate with blue anodized finish</li><li>Passage plugs are removable for servicing</li><li>Independent scavenge sections for flywheel cavity and cam chest</li><li>Debris screen in both scavenge pickups</li><li>Magnet in cam chest to help prevent debris from entering the oil pump</li><li>Increased oil flow capacity on both the oil feed and scavenge side</li><li>Adjustable pressure relief valve can be adjusted with the unit installed in the engine</li><li>Quickee pushrods with chrome pushrod tubes</li><li>S&S premium tappets</li><li>S&S hard-anodized, black coated tappet cuffs are billet aluminum construction</li><li>Improve tappet stability in high-lift, high-rpm situations</li><li>S&S 550 cams designed for big bore applications</li><li>S&S valve springs work with cams up to .605" lift</li><li>High-performance conical single-wire spring design</li><li>All necessary gaskets, bearings, and hardware for bolt-on installation is included</li><li>Made in the U.S.A.</li></ul><br>Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.
S&S
#310-1107B




































