POWERPAK OIL COOL 4.25"BORE4.375"STROKE M8 BLK NO

With updated fins Bolt-on kit No case machining required Forged pistons Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs Made in the USA 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 Camshaft: S&S 550 camshaft - designed for big bore applications Valve Springs: Works well with camshafts up to 0.605" lift High performance conical single wire spring Includes top collars, keepers, valve seals and bottom collars