S&S CYCLE 129" Power Package - HPT496 - Chain Drive - Oil Cooled - Black with Highlights - 107" M8 310-1395

129" Power Package - HPT496 - Chain Drive - Oil Cooled - Black with Highlights - 107" M8
Big bore bolt-on kit increases 107" M8 to 129" with no case machining required, Big bore 4.320" cylinder with 11.0:1 forged pistons, S&S oil pump/cam plate, 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 pushrod tubes, S&S premium tappets, S&S hard anodized, black coated tappet cuffs are billet aluminum construction, S&S valve springs; work with cams up to 0.605" lift, High performance conical single wire spring design, HPT496 cam designed for big bore applications, MLS (multi-layered steel) head gasket, Includes 129 cam cover badge, Made in the USA, Retains stock engine height., Works with stock crankcases., Works with the stock and S&S roller rocker arms., Original engine serial numbers are retained., Compatible with the stock valve springs, both first generation (round port) and second generation (oval port).