This 4 1⁄8" bore piston series is a 22 cc dome, intended for use with S&S® special application "Big Fin" cylinder heads in S&S 124" engines for 1984-up big twins. Pistons are clearanced for 4 5⁄8" stroke.
| Standard |
92-1580 |
| +.010 |
92-1581 |
| +.020 |
92-1582 |
| 92-1580 Series Pistons Specs |
| Type |
Bore |
Material |
Dome |
Deck Height |
Stroke |
Wristpin Diameter |
| Forged |
4 1⁄8" |
Low Silicon |
S&S BF (22cc) |
1.050" |
4 5⁄8" |
.927" |
