Feuling Endurance Beehive Spring Kit without Retainers

Feuling Endurance beehive valve springs are a direct bolt in replacement up to 565 lift camshafts no spring seat machining required. Machined from a premium grade hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance.

Feuling beehive valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs.

• Direct bolt-in replacement up to 565 cam lift no machining or rocker box clearancing required
• Eliminate valve spring separation, maximize stability, reduce valve-train noise and harmonics
• Don't get stung by inferior valve springs
• Aids a quicker-revving, smoother motion valvetrain
• Kit includes:
  • Feuling Endurance Beehive valve springs
  • Machined spring seats
  • Seat shims
  • Valve locks
  • Viton valve seals with a spring loaded valve stem wiper system