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S&S CYCLE

S&S Cycle 124" Power Package For Harley Davidson FLFBS 1923 2017-2025 310-1057C

S&S Cycle 124" Power Package For Harley Davidson FLFBS 1923 2017-2025 310-1057C

310-1057C

£3,991.99
£3,991.99
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Vat included. Shipping calculated at checkout.
  • 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
    • Cam Drive Type Chain
    Product Type Performance Kit
    Vendor Part Number 310-1057C
    Compression Ratio 11,1:1
    Displacement 124"
    Brand S&S CYCLE
    Bore Size 4,250"
    Cooling System Oil Cooled
    Type Big Bore
    Colour/Finish Highlighted Fins, Black Granite
    Model Power Package
    Features Quickee Pushrods w/Gloss Black Covers, Includes Cam Chain Tensioner
    Stroke Length 4,375"

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