These forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and 4-1/4", 4-1/2" and 4-5/8" stroke engines with stock diameter (8-1/2") flywheels. 3-5/8" bore, standard size.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1997-1999 |
Harley-Davidson |
FLHR Road King |
Base |
| 1998-1999 |
Harley-Davidson |
FLHRCI Road King Classic |
Base |
| 1996-1997 |
Harley-Davidson |
FLHRI Road King |
Base |
| 1984,1987-1993 |
Harley-Davidson |
FLHS Electra Glide Sport |
Base |
| 1996-1999 |
Harley-Davidson |
FLHTCI Electra Glide Classic |
Base |
| 1989-1997 |
Harley-Davidson |
FLHTCU Electra Glide Ultra Classic |
Base |
| 1986-1990 |
Harley-Davidson |
FLST Heritage Softail |
Base |
| 1988-1999 |
Harley-Davidson |
FLSTC Heritage Softail Classic |
Base |
| 1990-1999 |
Harley-Davidson |
FLSTF Fat Boy |
Base |
| 1994-1996 |
Harley-Davidson |
FLSTN Heritage Softail Special |
Base |
| 1998-1999 |
Harley-Davidson |
FLTR Road Glide |
Base |
| 1998-1999 |
Harley-Davidson |
FLTRI Road Glide |
Base |
| 1995-1999 |
Harley-Davidson |
FXD Dyna Super Glide |
Base |
| 1993-1999 |
Harley-Davidson |
FXDL Dyna Low Rider |
Base |
| 1993-1999 |
Harley-Davidson |
FXDWG Dyna Wide Glide |
Base |
| 1987-1994 |
Harley-Davidson |
FXLR Low Rider Custom |
Base |
| 1999 |
Harley-Davidson |
FXR2 |
Base |
| 1999 |
Harley-Davidson |
FXR3 |
Base |
| 1984-1992 |
Harley-Davidson |
FXRS Low Glide |
Base |
| 1984-1992 |
Harley-Davidson |
FXRT Sport Glide |
Base |
| 1984-1999 |
Harley-Davidson |
FXST Softail Standard |
Base |
| 1999 |
Harley-Davidson |
FXSTB Night Train |
Base |
| 1986-1999 |
Harley-Davidson |
FXSTC Softail Custom |
Base |
| 1988-1999 |
Harley-Davidson |
FXSTS Springer Softail |
Base |
| 1995-1997 |
Harley-Davidson |
FXSTSB Bad Boy |
Base |
| 1984-1986 |
Harley-Davidson |
FXWG Wide Glide |
Base |
