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Fueling Endurance Beehive Valve Springs

Fueling Endurance Beehive Valve Springs

This part is bike specific. It will not fit all makes / models / years.

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Product Overview

•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 650" cam lift; no machining or rocker box clearancing required
•Available for 5/16" and 7mm valves
•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
•Spring pressures are 190 lb. at 1.725" (.575" lift), 185 lb. at 1.785" (.635" lift), 160 lb. at 1.800" (.650" lift), 375 lb. at 1.150" (open height) and coil bind at 1.100"
•Made in the U.S.A.

NOTE: Feuling Beehive valve spring kits are direct replacement with no machining or rocker box clearance required up to .574" lift for 84-04 Big Twin and 86-03 XL and up to .650" lift for 05-12 Twin cam. Larger camshafts require valve guide machining for seal to retainer clearance.


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