Feuling, Endurance Beehive valve spring kit. .650" lift - 99-17 TCA/B with Screamin' Eagle heads with 5/16" valve stems with std. keeper and .530" diameter valve guides (NU) 519840 Note: Standard Twin Cam ignition

Note: Standard Twin Cam ignition is a single fire system

Available in multiple variations

Constructed from lightweight aluminum with a polished finish

For 04-06/10-18 XL

Attractive pegs with an affordable price

Feuling, Endurance Beehive valve spring kit. .650" lift - 99-17 TCA/B with Screamin' Eagle heads with 5/16" valve stems with std. keeper and .530" diameter valve guides (NU) 519840 Note: Standard Twin Cam ignitionInstalled pressure 198lbs@1. 685", open pressure & height 375lbs@1. 150", coil bind@1. 100". Direct replacement, installs without machining or rocker box clearancing. High tensile chrome silicone wire with a shot peened heat treatment and a super NexTex finish. Kits include springs, lower collars, titanium upper collars, shims, keys and Viton seals.