- 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, Quikee pushrod kit with chrome covers, tappet cuffs lifter guide, spring kit, big bore cylinder kit, oil cooled oil pump, hydraulic tappets and a cam chain tensioner.
- S&S OEM # 310-1223
Note
Fits Harley-Davidson Milwaukee-Eight 107" (oil cooled)