Description
If you’re serious about extracting maximum displacement from your M8, this S&S Cycle 131″ cylinder is the foundation of a legitimate power increase. The engineered geometry delivers substantial horsepower and torque gains while maintaining compatibility with your stock crankcase—no extensive machine work required. You retain your original engine serial number and factory aesthetics, making this the smart choice for builders who demand performance without compromise.
- Displacement: 131 cubic inches
- Manufacturer: S&S Cycle
- MPN: 910-0763
- Finish: Black powder coat
- Fitment: M8 compatible
- Installation: Bolt-on design
- Head Gasket: .045″ MLS
- Crankcase: Stock compatible
- Engine Height: Retained
- Requirement: 4-5/8″ stroker flywheels
- Includes: 131″ cam cover badge
- Serial Numbers: Preserved








