Product Description
S&S 129" Power Package Big Bore Kit w/ 496 Cam for 107" Harley M8.
Fits: 2017-2026 Harley M8 Models with the OEM 107" Motor - Oil Cooled
- Big bore bolt-on kit increases 107" M8 to 129" with no case machining required
- Big bore 4.320" cylinder with 11.0:1 forged pistons
- S&S oil pump/cam plate
- 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 pushrod tubes
- S&S premium tappets
- S&S hard anodized, black coated tappet cuffs are billet aluminum construction
- S&S valve springs; work with cams up to 0.605" lift
- High performance conical single wire spring design
- HPT496 cam designed for big bore applications
- MLS (multi-layered steel) head gasket
- Includes 129 cam cover badge
- Made in the USA
Notes:
- Retains stock engine height.
- Works with stock crankcases.
- Works with the stock and S&S roller rocker arms.
- Original engine serial numbers are retained.
- Compatible with the stock valve springs, both first generation (round port) and second generation (oval port).
Additional Information
| SKU | 310-1397 |
| SKU | 310-1398 |
| SKU | 310-1394 |
| SKU | 310-1395 |