Features

• 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