Description
High-rpm stability and reliability demand valve springs engineered for extreme duty. Feuling’s Beehive design uses premium hi-tensile chrome silicon wire with shot-peening and thermal treatment to handle aggressive cam profiles without fatigue failure. This complete bolt-in kit eliminates machine work up to .650″ lift on modern Twin Cam engines, letting you upgrade your valvetrain in an afternoon without compromising durability or responsiveness.
- Hi-tensile chrome silicon construction
- Shot-peened, thermally treated
- Super NexTex® finish
- Lightweight titanium retainers
- 7° retainer geometry
- Includes machined seats
- Spring-loaded Viton® seals
- Seat shims & locks included
- 198 lbs. seat pressure (stock)
- 375 lbs. open pressure
- Fits up to .650″ lift
- No rocker box machining required
- 84-04 Big Twin compatible
- 86-03 XL compatible
- 05-17 Twin Cam compatible
- U.S.A. manufactured
- Bolt-on installation
