Description

• Product

• • Machined from premium-grade hi-tensile chrome silicon single-conical ovate wire
  • Shot-peened with specially processed thermal heat treat and super NexTex® finish for fatigue life needed to exceed high demands of V-Twin engines
  • Use a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion
  • Direct bolt-in replacement up to 0.650″ cam lift; no machining or rocker box clearancing required
  • Kits include: Endurance BeeHive® valve springs, lightweight 7° super Titanium heat-treated retainers, machined spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with spring-loaded valve stem wiper system
  • Made in the USA
  • Seat lb / installed height:
  • 198 lb @ 1.685″ (0.535″ lift)
  • 194 lb @ 1.703″ (0.553″ lift)
  • 190 lb @ 1.724″ (0.574″ lift)
  • 187 lb @ 1.754″ (0.604″ lift)
  • 185 lb @ 1.780″ (0.630″ lift)
  • 160 lb @ 1.800″ (0.650″ lift)
  • 375 lb @ 1.150″ Open Height
  • Coil Bind @ 1.100″

  Notes

  • Must be installed at the correct open height, matching max lift to the open height spec of the valve springs.
  • Feuling® BeeHive® valve spring kits are direct replacement with no machining or rocker box clearance required up to 0.574″ lift for ’98-’04 Big Twin and ’86-’03 XL and up to 0.650″ lift for ’05-’17 Twin Cam. Larger camshafts require valve guide machining for seal to retainer clearance.