*item may differ from images
S&S 89" stock bore stroker kit upgrades carbureted 80" HD 80 Evolution Big Twin engines to 89" displacement at approximately 9.25:1 compression
- This kit requires special pistons which must be ordered separately depending on the oversize required for the stock cylinders
- Includes a dynamically balanced 4-5/8" stroke flywheel assembly complete with S&S heavy duty connecting rods and mainshafts
- Pistons are available for stock or S&S Performance Replacement cylinder heads or for S&S Super Stock cylinder heads
- Stock bore stroker kits reuse the stock cylinders, saving cost and retaining appearance of the engine
- Minor crankcase and cylinder modifications are required, that can easily be done with hand tools
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 |
| 1984-1999 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1996-1999 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 1989-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1995-1999 | Harley-Davidson | FLHTCUI 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 |
| 1993 | Harley-Davidson | FLSTN Heritage Softail Nostalgia | Base |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special | 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 |
| 1999 | Harley-Davidson | FXDX Dyna Super Glide Sport | Base |
| 1999 | Harley-Davidson | FXR2 | Base |
| 1999 | Harley-Davidson | FXR3 | Base |
| 1984-1992 | Harley-Davidson | FXRS Low Glide | Base |
| 1986-1993 | Harley-Davidson | FXRS-SP Low Rider Sport | 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 |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy | Base |