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 Adjustable back plastic snap closure

Adjustable back plastic snap closure

Note: Standard Twin Cam ignition is a single fire system

Can be drilled & tapped to install nipples for head venting purposes

88" to 107" big bore conversion piston set

the Dyna exhaust systems were developed to surpass what is offered on the market today

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 Adjustable back plastic snap closureInstalled 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.