.650in. Lift Endurance Beehive Valve Spring Kit. Fits Big Twin 1984-2004, Sportster & Buell 1986-2003.


6 in stock

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FEULING Endurance BeeHive valve springs are 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.

Kits include: FEULING endurance BeeHive valve springs, lightweight super Titanium heat treated retainers, machined chrome moly spring seats and valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system.