New in factory sealed original packaging
Made from premium stress-relieved conical ovate wire
Features extremely high-level of fatigue life
Uses a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion
Designed to handle the demands of performance engines with 0.585" and smaller lift camshafts
Kit includes: Econo BeeHive® valve springs, lightweight 7° steel 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; 183 lb at 1.770" (0.510" lift)
175 lb at 1.795" (0.535" lift)
172 lb at 1.813" (0.553" lift)
165 lb at 1.835" (0.574" lift)
160 lb at 1.845" (0.585" lift)
380 lb at 1.260" open height coil bind at 1.190"
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
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.
Specs
Product Name Spring
Type Valve
Style Ovate Wire Beehive
Model Endurance Beehive
Material Chrome-Silicon
Units Kit
Riding Style Street
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