Description
If you’re running a performance cam on your Twin Cam engine, valve spring selection directly impacts reliability, rev capability, and overall engine longevity. Feuling’s Econo Beehive springs deliver dyno-proven performance with a compact design that reduces valve train mass—allowing faster acceleration and smoother motion without sacrificing fatigue life. This is a complete, bolt-on kit engineered for street and track duty, with no rocker box clearance issues or machine work required.
- Stress-relieved conical ovate wire
- Lightweight 7° steel retainers
- Machined heat-treated chromoly seats
- Premium Viton® seals included
- Spring-loaded stem wiper system
- Seat pressure: 183 lbs. @ 1.770″
- Open height: 1.260″ (380 lbs.)
- Coil bind: 1.190″
- Max lift capability: .585″
- Fits 84-04 Big Twin engines
- Fits 86-03 XL Sportster models
- Fits 05-17 Twin Cam platforms
- Direct replacement, no machining
- Dyno proven, track tested
- Made in the U.S.A.
- Complete kit with all components
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