S&S CYCLE 129" Power Pack - 550 Chain Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - 107" M8

Highlights

• Big-bore bolt-on kit increases 107" M8 to 129" with no case machining required.
• 4.32" bore cylinders with 11.0:1 compression ratio forged pistons.
• S&S oil pump/cam plate with blue anodized finish.
• 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.
• S&S premium tappets.
• S&S hard-anodized, black coated tappet cuffs are billet aluminum construction.
• S&S 550 cams are designed for big bore applications.
• S&S valve springs work with cams up to 0.605" lift.
• High-performance conical single wire spring design.
• All necessary gaskets, bearings and hardware for bolt on installation included.
• Made in the USA.
• Not for any Trike models.
• Black Pushrod Tubes.