Description
If you’re running an 883 or early 1200cc Big Twin and want genuine displacement gains without sacrificing reliability, the S&S Cycle 1250cc piston kit delivers a straightforward path to increased power and torque. These cast flat-topped pistons are engineered for the demands of real-world riding, whether you’re tuning a stock engine or pairing them with S&S performance heads. At 10.3:1 compression, you get measurable performance improvements while maintaining the durability that keeps you on the road.
- Displacement: 883cc–1250cc
- Compression Ratio: 10.3:1
- Piston Design: Cast flat-top
- Bore Diameter: 3-9/16″
- Fitment: 1984–’99 HD Big Twins
- Compatible Heads: Stock or S&S performance
- Cylinder Compatibility: 1200cc stock cylinders
- Requires Boring: 1986–’2003 883cc cylinders
- Not Compatible: 2004–’16 883cc cylinders
- Installation: Professional machine work required
- MPN: 920-0071
