FEULING OIL PUMP CORP. Valve Springs - Econo Beehive - Twin Cam 1123

High-revving performance demands valve springs engineered for reliability at sustained RPMs, and the Feuling Econo Beehive delivers proven track performance without the premium price tag. These conical ovate wire springs are stress-relieved for exceptional fatigue life, so you get consistent valve control lap after lap. The lightweight 7° steel retainers reduce reciprocating mass, enabling quicker throttle response and smoother engine motion across the entire powerband.

This complete kit arrives ready to install on your Twin Cam with zero machining required—bolt it in and focus on driving. Whether you're running a stock big-block or pushing a performance 0.585" lift cam, Feuling's dyno-proven and track-tested design handles the load with precision.

• Premium stress-relieved conical ovate wire
• Lightweight 7° steel retainers
• Machined heat-treated chromoly seats
• Seat shims included
• Premium Viton® valve seals
• Spring-loaded stem wiper system
• Seat load: 183 lbs. @ 1.770"
• Open height load: 380 lbs. @ 1.260"
• Rated for 0.585" lift maximum
• Direct replacement, no machining
• Compatible 84–04 Big Twin, 86–03 XL, 05–17 Twin Cam
• Made in the U.S.A.
• Dyno-proven and track-tested