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Exhaust

310-1058C

Power Pack - 4.375" Stroke - Oil Cooled - Black W/Highlights - M8

  • Bolt-on kit
  • With updated fins
  • No case machining required
  • Forged pistons
  • Made in the USA
  • Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs

Oil Pump/Cam Plate:

  • Precision machined from billet aluminum
  • Passage plugs removable for servicing
  • Independent scavenge sections for flywheel cavity and camchest
  • Debris screens in both scavenge pickups
  • Magnet in camchest to help to stop debris from entering oil pump
  • 44% flow increase on supply side and 58% flow increase on scavenge side
  • Pressure relief valve is adjustable with unit installed in engine

Pushrods:

  • Quickee pushrods

Tappets:

  • Hand assembled to exacting tolerances
  • Reduced valve train noise from start up to shut down
  • Close tolerances for low leak down rates

Tappet Cuffs:

  • Hard anodized black coating
  • Billet aluminum construction
  • Tappet stability in high lift and high rpm sitiuations

Camshaft:

  • S&S 550 camshaft - designed for big bore applications

Valve Springs:

  • Works well with camshafts up to 0.605" lift
  • High performance conical single wire spring
  • Includes top collars, keepers, valve seals and bottom collars

Notes

  • Not for any Trike models.
  • Intake/rocker cover gaskets not included.