S&S Cycle 4.375-Inch Stroke Oil-Cooled Power Pack – Matte Black with Metallic Highlights for M8 Engines (Model 310-1058C)

Description

Power Pack – 4.375″ Stroke – Oil Cooled – Black w/Highlights – M8
Bolt-on kit, With updated fins, No case machining required, Forged pistons, Made in the USA, Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs, Oil Pump/Cam Plate:, Precision machined from billet aluminum, Passage plugs removable for servicing, Independent scavenge sections for flywheel cavity and camchest, Debris screens in both scavenge pickups, Magnet in camchest to help to stop debris from entering oil pump, 44% flow increase on supply side and 58% flow increase on scavenge side, Pressure relief valve is adjustable with unit installed in engine, Pushrods:, Quickee pushrods, Tappets:, Hand assembled to exacting tolerances, Reduced valve train noise from start up to shut down, Close tolerances for low leak down rates, Tappet Cuffs:, Hard anodized black coating, Billet aluminum construction, Tappet stability in high lift and high rpm sitiuations

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