Endurance Beehive valve spring kit engineered for Screamin' Eagle heads to deliver quicker revving, improved stability and reduced valve-train noise.
- Feuling Beehive valve springs use a smaller, lighter retainer to significantly reduce valve weight for quicker rev response and smoother motion versus comparable dual springs.
- Direct bolt-in replacement up to 0.650" cam lift without machining or rocker box clearancing.
- Eliminates spring separation while minimizing harmonics and valve-train noise.
- Machined from hi-tensile chrome-silicon ovate wire, shot-peened with thermal heat treatment and a NexTex® finish.
- Kit includes endurance beehive springs, 7° titanium heat-treated retainers, machined spring seats, seat shims, valve locks and Viton® valve seals with spring-loaded stem wipers.
Seat lb / installed height:
- 198 lb @ 1.685" (0.535 lift)
- 194 lb @ 1.703" (0.553 lift)
- 190 lb @ 1.724" (0.574 lift)
- 187 lb @ 1.754" (0.604 lift)
- 185 lb @ 1.780" (0.630 lift)
- 160 lb @ 1.800" (0.650 lift)
- 375 lb @ 1.150" open height
- Coil bind @ 1.100"
Fits Twin Cam Screamin' Eagle Heads with 5/16" valve stems and .530" diameter valve guides.