Description
If you’re running a performance cam on your Big Twin or Twin Cam, your factory valve springs are holding you back. The FEULING OIL PUMP CORP. Valve Springs – Econo Beehive 1120 deliver the fatigue resistance and reliability needed for sustained high-RPM operation, while the lightweight retainers and optimized spring rates reduce parasitic losses and enable faster valve transitions. This is a complete, bolt-on upgrade kit engineered for serious builders who demand dyno-proven performance without fabrication headaches.
- Premium stress-relieved conical ovate wire
- Lightweight 7° steel retainers
- Machined heat-treated chromoly spring seats
- Premium Viton® valve seals
- Spring-loaded stem wiper system
- 183 lbs. seat pressure (1.770″ height)
- 380 lbs. open pressure (1.260″ height)
- Rated for .585″ max lift
- No rocker box clearance modifications needed
- Fits 84-04 Big Twin, 86-03 XL, 05-17 Twin Cam
- Dyno proven, track tested
- Made in the U.S.A.
- Direct replacement, bolt-on installation
