Description
If you’re running an M8 and want measurable horsepower gains without splitting your cases, the S&S CYCLE Big Bore kit delivers straightforward performance. This bolt-on cylinder swap pairs seamlessly with your stock heads, making it an efficient path to increased displacement and power. You get a complete, U.S.-made solution with precision-engineered components ready for installation by a skilled technician.
- Displacement increase via big bore
- Bolt-on installation method
- No case splitting required
- Premium aluminum castings
- Cast-in iron liners
- Includes pistons, rings, gaskets
- Stock head compatible
- Black or silver powder coat
- U.S.A. manufactured
- MPN: 9100733
- Requires skilled technician assembly
- Clearance verification recommended








