85-04 B/T ECONO BEEHIVE V/SPRING KIT

Made from heat treated chromoly conical ovate wire Uses a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion Up to 0.585" lift Kit includes: Econo BeeHive® valve springs, lightweight 7° steel or titanium retainers, machined heat-treated chromoly spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with spring-loaded valve stem wiper system Seat lb / installed height: Dyno proven and track tested Feuling® BeeHive® valve springs must be installed at the correct open height, matching max lift to the open height spec of the valve springs. Made in the USA 165 lb @ 1.825" (0.574" lift) 163 lb @ 1.835" (0.585" lift) 380 lb @ 1.250" Open Height 175 lb @ 1.785" (0.535" lift) 172 lb @ 1.803" (0.553" lift) 183 lb @ 1.760" (0.510" lift) Coil Bind @ 1.180" Hand measured and labeled specifically based on their coil bing / required open height Econo BeeHive® kit is direct replacement with no machining or rocker box clearance required for cams up to 0.574" lift for '84-'04 Big Twin and '86-'03 XL and up to .585" lift for '05-'17 Twin Cam.