- Designed for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm
- Progressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peened
- Complete set for one engine
- Made in the USA
- Spring Lift 0.600"
Kit Includes:
- 4x CrSi Valve Springs
- 4x Aluminium Alloy Retainers
- 4x H.T. Steel Basewashers
- 4x H.T Steel Keeper (Pairs)
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1979-1981 | Harley-Davidson | Electra Glide Classic FLHC | |
| 1966-1969 | Harley-Davidson | Electra Glide FLFB | |
| 1970-1984 | Harley-Davidson | Electra Glide FLH | |
| 1966-1969 | Harley-Davidson | Electra Glide FLHB | |
| 1970-1972 | Harley-Davidson | Electra Glide FLHF | |
| 1966-1969 | Harley-Davidson | Electra Glide FLHFB | |
| 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 | |
| 1977-1982 | Harley-Davidson | Low Rider FXS | |
| 1983-1984 | Harley-Davidson | Low Rider FXSB | |
| 1983 | Harley-Davidson | Sport Glide FXRT | |
| 1980-1982 | Harley-Davidson | Sturgis FXB | |
| 1974-1978 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1981-1984 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1971-1978 | Harley-Davidson | Super Glide FX | |
| 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 | |