FEULING PARTS Endurance Beehive® Valve Springs with Titanium Retainers — up to 0.650" lift, 375 lb @ 1.150" open height – 84-86 Big Twin, 83-04 Touring, 85-04 Softail, 91-04 Dyna, 99-02 CVO, 84-94 FXR, 84 Police, 86-03 Sportster

Endurance Beehive® valve springs are machined from premium-grade hi-tensile chrome silicon single-conical ovate wire to deliver the fatigue life required by high-demand V-Twin engines. 🔧

• Shot-peened with a specially processed thermal heat treat and super NexTex® finish for superior fatigue resistance.
• Use a much smaller, lighter retainer to reduce valve weight and create quicker rev response and smoother motion.
• Direct bolt-in replacement up to 0.650" cam lift; no machining or rocker box clearancing required for the specified fitments.

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 a spring-loaded valve stem wiper system.

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 occurs at 1.100". Must be installed at the correct open height, matching max lift to the open height spec of the valve springs.

These 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. Made in the USA. 🔥