Description
If you’re running an 883cc or 1200cc Big Twin and want measurable power gains without a complete engine rebuild, a displacement bump to 1250cc delivers real results. The S&S CYCLE 920-0026 piston kit gets you there with a straightforward bore upgrade, pairing cast flat-top pistons engineered for reliability at elevated compression. This is a bolt-on path to more torque and horsepower when matched with the right cylinder package.
Fitment & Compatibility:
- 1984–1999 HD Big Twins
- Stock or S&S Performance heads
- Stock 1200cc cylinders: compatible
- 1986–2003 883cc cylinders: bored required
- 2004–2016 883cc cylinders: not compatible
Technical Specifications:
- Displacement: 1250cc
- Compression ratio: 10.3:1
- Piston design: Cast flat-top
- Bore size: 3-9/16″
- S&S CNC ported heads: recommended
- Installation: Bore and hone
