Product Description
S&S 129" Power Package Kit for Harley models.
Fits: 2017-2025 Harley M8 Models with the OEM 107" Motor
- Big-bore bolt-on kit increases your 107” to 129” with no case machining required
- Big bore 4.32” cylinders with 11:1 forged pistons
- S&S oil pump/cam plate with a 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 with chrome pushrod tubes
- S&S premium tappets
- S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
- Improved tappet stability in high-lift, high-rpm situations
- S&S 550 cams 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
- Original engine serial numbers are retained
- Made in the U.S.A.
Additional Information
| SKU | 310-1223C |
| SKU | 310-1225C |
| SKU | 310-1226C |