Description
If you’re building a big-bore Evolution engine, piston quality directly impacts reliability, power delivery, and longevity under high RPM conditions. S&S Cycle forged pistons are engineered to handle the demands of a stroker build, delivering superior strength and thermal stability compared to cast alternatives. These pistons are the foundation of a bulletproof big twin setup.
- Forged construction, premium durability
- 3-5/8″ bore, standard size
- Compatible with S&S Big Bore Hot Set Up Kits
- Works with HD Evolution big twin engines
- Supports 4-1/4″, 4-1/2″, 4-5/8″ strokes
- Designed for S&S Super Stock cylinder heads
- Stock 8-1/2″ flywheel compatible
- MPN: 92-1060
