FEULING PARTS Endurance Beehive® Valve Spring Kit — up to 0.565" lift, 226 lb @ 0.970" open height, fits 6.00 mm valve stems – 18-26 Softail, 17-26 Touring, 17-25 Trike, 17-24 CVO

🔧 Designed for V‑Twin engines, the Endurance Beehive® valve spring kit provides durable, direct bolt‑in replacements with no machining or rocker box clearancing required.

• Machined from premium‑grade high tensile chrome silicon single‑conical ovate wire.
• Shot‑preened with a specially processed thermal heat treat and super NexTex® finish for the fatigue life needed to exceed high demands in V‑Twin engines.
• Kit includes Endurance Beehive® valve springs, with or without titanium retainers as noted, machined spring seats, seat shims, valve locks and Viton® valve seals.
• Made in the USA.

Performance limits:

• Up to 0.565" lift.
• 226 lb @ 0.970" open height; coil bind @ 0.920".

Seat lb / installed height:

• 134 lb @ 1.375" (0.405" lift)
• 127 lb @ 1.405" (0.435" lift)
• 125 lb @ 1.415" (0.445" lift)
• 121 lb @ 1.435" (0.465" lift)
• 116 lb @ 1.455" (0.485" lift)
• 113 lb @ 1.470" (0.500" lift)
• 109 lb @ 1.490" (0.520" lift)
• 103 lb @ 1.520" (0.550" lift)

Cam specs measured on the lifter @ 0.050" lift with 1.61 rocker arm ratio. Fits stock 6.00 mm valve stems with triple groove.