S&S CYCLE 0904-0181 310-1395 129" Power Package Engine Performance Kit - HPT496 - Chain Drive - Oil Cooled - Black with Highlights - 107" M8

Features

• Big bore bolt-on kit increases 107" M8 to 129" with no case machining required
• Big bore 4.320" cylinder with 11.0:1 forged pistons
• S&S oil pump/cam plate
• 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 with pushrod tubes
• S&S premium tappets
• S&S hard anodized, black coated tappet cuffs are billet aluminum construction
• S&S valve springs; work with cams up to 0.605" lift
• High performance conical single wire spring design
• HPT496 cam designed for big bore applications
• MLS (multi-layered steel) head gasket
• Includes 129 cam cover badge
• Made in the USA
  • Notes
    • Retains stock engine height.
    • Works with stock crankcases.
    • Works with the stock and S&S roller rocker arms.
    • Original engine serial numbers are retained.
    • Compatible with the stock valve springs, both first generation (round port) and second generation (oval port).

WARNING
DISCLAIMER: Not legal for sale or use in California on any pollution controlled motor vehicles.

Specs

Fitments