S&S CYCLE Engine Performance Kit — 4.320", 129", 11.0:1, Chain, Wrinkle Black – 18-26 Softail, 24-26 Touring, 17-26 Trike, 25 CVO

Built for M8 applications, including VVT models, this after-market performance kit is designed to increase a 107" M8 to 129" without case machining.

It features an S&S oil pump/cam plate with removable passage plugs for servicing, independent scavenge sections for the flywheel cavity and cam chest, debris screens in both scavenge pickups, and a cam-chest magnet to help keep debris out of the oil pump.

Additional highlights include increased oil flow capacity on both feed and scavenge sides, an adjustable pressure relief valve that can be set with the unit installed, Quickee pushrods with pushrod tubes, S&S premium tappets, a 496 camshaft, MLS head gasket, and S&S valve springs designed to work with cams up to 0.605" lift.

It also retains stock engine height, works with stock crankcases, works with stock and S&S roller rocker arms, and retains original engine serial numbers.