Description

• Product

• • 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).