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128" Power Package Engine Performance Kit

  • Big Bore Kit
  • Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight to 128" with no case machining required
  • 4-1/4" bore cylinders with 11:1 forged pistons
  • Oil Pump/Cam Plate
  • S&S oil pump/cam plate with blue anodized finish
  • 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
  • Pushrods
  • Quikee pushrods with chrome pushrod tubes
  • Tappets
  • S&S premium tappets
  • Tappet Cuffs
  • S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
  • Improve tappet stability in high-lift, high-rpm situations
  • Cam
  • S&S 550 cams designed for big bore applications
  • Valve Springs
  • S&S valve springs work with cams up to .605" lift
  • High-performance conical single-wire spring design
  • All necessary gaskets, bearings and hardware for bolt-on installation is included
  • Made in the U.S.A.
  • Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.
Brand
S&S CYCLE
Vendor part number
310-1104A
Bore Size
4,250"
Cam Drive Type
Gear
Color/Finish
Highlighted Fins, Wrinkle Black
Compression Ratio
11,1:1
Cooling System
Oil Cooled
Displacement
128"
Model
Power Package
Product Name
Performance Kit
Stroke Length
4,500"
Style
Big Bore
Type
Engine
Units
Kit
FatBook 2024

S&S CYCLE

POWER PK BK M8 W/H OIL

09040068 / 310-1104A

4.629,78EUR*
*incl. 19% VAT
9+ In Stock
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Product information


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