Description
Building serious displacement on your M8 requires a big bore kit engineered for reliability at high RPM—not a compromise. The S&S Cycle Power Package delivers 124 cubic inches of additional capacity with forged pistons and a 10.5:1 compression ratio, giving you measurable power gains without sacrificing engine longevity. The billet aluminum oil pump and independent scavenge sections keep your engine cool and clean under sustained load, which means fewer failures on the track or during long rides.
- 107″ to 124″ displacement
- 4.250″ bore diameter
- Forged piston construction
- 10.5:1 compression ratio
- Bolt-on installation
- No case machining required
- Billet aluminum oil pump
- Blue anodized finish pump
- Independent scavenge sections
- Increased feed/scavenge flow
- Adjustable pressure relief valve
- Removable passage plugs
- Debris screens included
- Magnetic cam chest filter
- Chrome pushrod tubes
- S&S precision tappets
- Hard anodized tappet cuffs
- Winkle black finish
- Highlighted fin detailing
- MPN: 310-1053A
