This 3-5/8" big bore kit may be used to replace the cylinders and pistons of an S&S SH98 engine or a stock HD® shovelhead engine that has been upgraded with an S&S 98" Sidewindert® kit. Stock crankcases must be bored to accomodate the 3-5/8" bore cylinders. The kit includes S&S 3-5/8" bore cylinders, 3-5/8" bore forged pistons with rings and wristpins, head gaskets, base gaskets, exhaust gaskets, and instructions. Compression is 8.9 :1. The cylinders are longer then stock , so longer pushrods, and manifold must be used.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1970-1984 |
Harley-Davidson |
FLH Electra Glide |
Base |
| 1980-1984 |
Harley-Davidson |
FLHS Electra Glide Sport |
Base |
| 1984 |
Harley-Davidson |
FLHX Electra Glide Special |
Base |
| 1980-1983 |
Harley-Davidson |
FLT Tour Glide |
Base |
| 1981 |
Harley-Davidson |
FLTC Tour Glide Classic |
Base |
| 1971-1978 |
Harley-Davidson |
FX Super Glide |
Base |
| 1982-1983 |
Harley-Davidson |
FXR Super Glide II |
Base |
