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PowerPak OilCool 4.320""Bore 4 3/8""Stroke 550G Cam WBNoHi M8

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In stock
SKU
09040157
S+S CYCLE
Special Price €4,288.00 Regular Price €4,900.00
Dispatching between 24.03.2026 and 25.03.2026
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Monthly payment from 116.18€, when choosing ESTO instalment as the payment method.
  • Big-bore bolt-on kit increases 107" M8 to 129" with no case machining required
  • 4.32" bore cylinders with 11.0:1 compression ratio forged pistons
  • 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
  • Quickee pushrods
  • S&S premium tappets
  • S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
  • S&S 550 cams are designed for big bore applications
  • S&S valve springs work with cams up to 0.605" lift
  • High-performance conical single wire spring design
  • All necessary gaskets, bearings and hardware for bolt on installation included
  • Made in the USA
Brand
S&S CYCLE
Vendor Part Number
310-1228C
Bore Size
4,320"
Cam Drive Type
Gear
Color/Finish
Non-Highlighted Fins, Wrinkle Black
Compression Ratio
11,0:1
Cooling System
Oil Cooled
Displacement
129"
Features
Black Pushrod Tubes
Model
Power Package
Product Name
Performance Kit
Stroke Length
4-3/8"
Type
Engine
Units
Kit
More Information
Weight0.010000
Height0
Width0
BrandS+S CYCLE
Lenght0
Supplier reference310-1228C
OutletNo
0
Rating:
0% of 100
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