Description
If you’re running an 883cc or 1200cc Big Twin and want genuine displacement gains without an engine swap, the S&S CYCLE Piston Kit 92-1410 is your direct path to 1250cc. This kit delivers measurable increases in power and torque by optimizing bore size and compression ratio—a proven upgrade that separates serious builders from casual upgrades. Whether you’re chasing track performance or reliable street power, these cast flat-top pistons are engineered to work with both stock and performance heads.
- Displacement: 883cc/1200cc → 1250cc
- Compression ratio: 10.3:1
- Bore diameter: 3-9/16″
- Piston type: Cast flat-top
- Fitment: 1984–’99 HD Big Twins
- Compatible heads: Stock 1200cc or S&S CNC ported
- S&S ported heads: Recommended
- Cylinder compatibility: 1986–’03 (requires boring)
- Installation: Professional fabrication recommended
- Material: Cast construction
- MPN: 92-1410
