Description
The S&S Cycle 131″ cylinder is engineered for riders serious about extracting maximum displacement and power from their M8 platform without compromising engine architecture. This bolt-on upgrade delivers substantial horsepower gains while preserving your original engine serial numbers and stock crankcase compatibility. The highlighted fin design combines functional cooling efficiency with classic aesthetic appeal, making it an ideal choice for both street and competition applications.
- Displacement: 131 cubic inches
- Platform: Harley-Davidson M8
- Fitment: Compatible with stock crankcases
- Installation: Bolt-on design
- Finish: Powder coat (factory-matched)
- Head gaskets: .045″ MLS multi-layered steel
- Engine height: Stock dimension retained
- Flywheel requirement: 4-5/8″ stroker
- Includes: 131″ cam cover badge
- Serial numbers: Original designation preserved
- Construction: CNC-machined, highlighted fins
- MPN: 9100762
