Description
129″ Power Pack – 550 Chain Drive – Oil Cooled – Wrinkle Black w/Highlight Fins – 107″ M8
Big-bore bolt-on kit increases 107″ M8 to 129″ with no case machining required, 4.32″ bore cylinders with 11.0:1 compression ratio 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 , S&S premium tappets, S&S hard-anodized, black coated tappet cuffs are billet aluminum construction, S&S 550 cams are designed for big bore applications, S&S valve springs work with cams up to 0.605″ lift, High-performance conical single wire spring design, All necessary gaskets, bearings and hardware for bolt on installation included, Made in the USA
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