- Transform 107" oil-cooled M8 into 129" with no case machining required
- Big bore cylinders come with matching cam, cam plate and oil pump
- Independent scavenge sections for flywheel cavity and cam chest
- Magnet in cam chest to help prevent debris from entering oil pump
- Feature high-performance conical single-wire S&S valve springs
- Original engine serial numbers are retained
- Passage plugs are removable for servicing
- Debris screen in both scavenge pickups
- MLS (multi-layered steel) head gaskets
- Performance matched 550 cam
- Works with stock crankcase
- Made in the USA
- Kit includes camplate, 550C camshaft kit, Quickee pushrod kit with gloss black covers, tappet cuffs lifter guide, spring kit, big bore cylinder kit, oil cooled oil pump, hydraulic tappet set, and cam chain tensioner.
Brand
S&S CYCLE
Vendor Part Number
310-1225
Base Color
Black
Bore Size
4,320"
Cam Drive Type
Chain
Color/Finish
Black, Highlighted Fins
Cooling System
Oil Cooled
Displacement
129"
Features
Black Pushrod Tubes
Model
Power Package
Product Name
Performance Kit
Stroke Length
4,375"
Style
Big Bore
Type
Engine
Units
Kit
FatBook 2024
S&S CYCLE
POWER PK 129" CHN OC M8
09040101 / 310-1225
4.380,62EUR*
*incl. 19% VAT
9
In Stock
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Product Information
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