Description
If you’re building a big bore hot setup for your Evolution big twin, these forged S&S pistons are the foundation of reliable, high-rpm performance. Engineered specifically for S&S cylinder heads and a range of stroke configurations, they deliver the durability and precision fit that separates a solid build from a problem waiting to happen. Whether you’re pushing 4.25″, 4.5″, or 4.625″ stroke, these pistons maintain the critical tolerances needed for consistent power delivery.
- Forged construction
- 3-5/8″ bore diameter
- Standard size piston
- HD Evolution engines
- S&S Big Bore compatible
- Super Stock heads compatible
- 4.25″ stroke compatible
- 4.5″ stroke compatible
- 4.625″ stroke compatible
- 8.5″ stock flywheels
- MPN: 92-1062
