Used in S&S Sidewinder® kits and Hot Set Up Kits® for Harley-Davidson® Evolution® big twins with stock cylinder heads and 4-1/4" and 4-1/2" stroke engines with stock diameter (8-1/2") flywheels and 4-3/4" stroke engines with 8-1/4" diameter flywheels. Low silicon forged pistons allow closer fit, quite operation, and long engine life.
Piston kits include set of pistons, rings, wristpins, and clips.
Recommended Piston Fit: Close: 0.0015”-0.0020” Loose: 0.0035”-0.0040”
| Standard |
92-1900 |
| +.010" |
92-1901 |
| +.020" |
92-1902 |
| +.030" |
92-1903 |
| +.040" |
92-1904 |
| +.050" |
92-1905 |
| +.060" |
92-1906 |
For 88", 93" & 98*" Stock Style Heads.
*Small Diameter Flywheels
