These 3-7/16" +.040" bore, standard compression stroker pistons are part of an S&S stock bore stroker kit for 1936-'84 HD® big twins, and are designed to be used in conjunction with S&S® stroker flywheels. Flywheels of the following strokes may be used for the following displacements: 4-1/2" stroke - 84" @ 8.4:1 compression, 4-5/8" stroke - 86" @ 9.4:1 compression, 4-3/4" stroke - 88" @10.8:1 compression.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1941-1947 |
Harley-Davidson |
EL |
Base |
| 1941-1962 |
Harley-Davidson |
FL |
Base |
| 1953,1955-1959 |
Harley-Davidson |
FLF |
Base |
| 1958-1959 |
Harley-Davidson |
FLH Duo-Glide |
Base |
| 1970-1978 |
Harley-Davidson |
FLH Electra Glide |
Base |
| 1955-1957 |
Harley-Davidson |
FLH Hydra-Glide |
Base |
| 1955-1959 |
Harley-Davidson |
FLHF |
Base |
| 1971-1978 |
Harley-Davidson |
FX Super Glide |
Base |
