S&S Cycle Powerpak Watercool 4.25"Bore4.375"Stroke M8 Blk W/Highlite 310-1054C
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S&S Cycle Powerpak Watercool 4.25″Bore4.375″Stroke M8 Blk W/Highlite 310-1054C

Original price was: $2,827.23.Current price is: $298.98.

SKU: 09040145 Category:

Description

Features

  • 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
  • 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
  • Quickee pushrods
  • Hand assembled to exacting tolerances
  • Reduced valve train noise from start up to shut down
  • Close tolerances for low leak down rates
  • Hard anodized black coating
  • Billet aluminum construction
  • Tappet stability in high lift and high rpm sitiuations
  • S&S 550 camshaft – designed for big bore applications
  • Works well with camshafts up to 0.605″ lift
  • High performance conical single wire spring
  • Includes top collars, keepers, valve seals and bottom collars

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