Beehive Valve Spring Kit - M8 2017 - 2021

Made from premium stress-relieved conical ovate wire

Feature extremely high-level of fatigue life

Use 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\" (EU: 1,486 cm) and smaller lift camshafts

Kits include: 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 lbs./installed height; 183 lbs. at 1.770\" (0.510\" lift) [EU: 83,00 kg at 4,50 cm (1,30 cm) lift)]

175 lbs. at 1.795\" (0.535\" lift) [EU: 79,38 kg at 4,56 cm (1,36 cm) lift)]

172 lbs. at 1.813\" (0.553\" lift) [EU: 78,02 kg at 4,61 cm (1,41 cm) lift)]

165 lbs. at 1.835\" (0.574\" lift) [EU: 74,84 kg at 4,66 cm (1,46 cm) lift)]

160 lbs. at 1.845\" (0.585\" lift) [EU: 72,57 kg at 4,69 cm (1,49 cm) lift)]

380 lbs. at 1.260\" open height coil bind at 1.190\" [EU: 172,37 kg at 3,20 cm open height coil bind at 3,02 cm]

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 U.S.A.

Econo BeeHive® kits are direct replacement with no machining or rocker box clearance required for cams up to 0.574\" (EU: 1,458 cm) lift for 84-04 Big Twin and 86-03 XL and up to .585\" lift for 05-17 Twin Cam.