S&S CYCLE 129" POWER PACKAGE HARLEY M8 MODELS 2017-2023 (107'')

S&S CYCLE 129" POWER PACKAGE HARLEY M8 MODELS 2017-2023 (107'')

• Transform the 107"  oil-cooled M8 into 129"
• Adjustable pressure relief valve can be adjusted with unit installed in the engine
• S&S valve springs feature high-performance conical single-wire spring design
• Big bore cylinders are matched with cam/cam plate and oil pump
• Magnet in cam chest to help prevent debris from entering oil pump
• Independent scavenge sections for flywheel cavity and cam chest
• Original engine serial numbers are retained
• Passage plugs are removable for servicing
• MLS (multi-layered steel) head gaskets
• Debris screen in both scavenge pickups
• Performance matched 550 cam
• Works with stock crankcase
• Retains stock engine height
• Includes cam cover badge
• Made in the USA