S&S 3.530" Bore Low Compression Forged Piston Kit +0.030" (106-5514)
- For 80" stock big twin motors
- Forged pistons for superior strength
- Piston kits include set of pistons, rings, wristpins, and clips
- Wrist pin deck height 1.270"
- 8:0:1 compression ratio
- 4.25" stroke length
- +0.030" bore oversize
- Made in the U.S.A
- Require the use of connecting rods with a rod length of 7.440"(standard length connecting rods); use of earlier connecting rod with rod length of 7.470" will result in a slight increase in the compression ratio of about one-halfpoint, and may also result in clearance problems (check all piston to cylinder head clearances carefully when using early style rods)
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1983 | Harley-Davidson | Disc Glide FXDG | |
| 1979-1981 | Harley-Davidson | Electra Glide Classic FLHC | |
| 1983 | Harley-Davidson | Electra Glide Classic FLHTC | |
| 1979-1984 | Harley-Davidson | Electra Glide FLH | |
| 1984 | Harley-Davidson | Electra Glide FLHX | |
| 1980-1981 | Harley-Davidson | Electra Glide Sport FLHS | |
| 1984 | Harley-Davidson | Electra Glide Sport FLHS | |
| 1979-1981 | Harley-Davidson | Fat Bob FXEF | |
| 1982-1983 | Harley-Davidson | Low Glide FXRS | |
| 1979-1982 | Harley-Davidson | Low Rider FXS | |
| 1983-1984 | Harley-Davidson | Low Rider FXSB | |
| 1983 | Harley-Davidson | Sport Glide FXRT | |
| 1980-1982 | Harley-Davidson | Sturgis FXB | |
| 1979-1984 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1982-1983 | Harley-Davidson | Super Glide II FXR | |
| 1981-1983 | Harley-Davidson | Tour Glide Classic FLTC | |
| 1980-1983 | Harley-Davidson | Tour Glide FLT | |
| 1980-1984 | Harley-Davidson | Wide Glide FXWG | |