FEULING OIL PUMP CORP. High Load Beehive Spring Kit - Harley-Davidson 2017-2021 - 1207

• Machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex® finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance
• FEULING® BEEHIVE® valve springs use a smaller lighter weight retainer which drastically reduces the valve weight creating a quicker revving and smoother motion than comparable dual or single valve springs.
• Valve springs are a direct bolt-in replacement, no spring seat or rocker cover machining required up to 0.565” (EU: 1,435 cm) lift
• Springs will accommodate over 0.600" (EU: 1,524 cm) cam lift, but will require spring seat pocket machining on the cylinder heads to set correct spring open height
• Smaller lighter weight retainers which drastically reduce the valve weight creating a quicker revving and smoother motion than comparable dual or single valve springs
• Eliminate valve spring separation, maximize stability, reduce valve-train noise & harmonics
• Kits include: matched set of Feuling® High Load Beehive® valve springs, Ti retainers, machined spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with a spring loaded valve stem wiper system
• ONLY recommended for large lift camshafts and RACE style engines as these valvesprings if not set properly will create extreme rocker arm deflection
• Seat lbs./Installed Height
• 151 Lbs. @ 1.475" (0.485" Lift) [EU: 68,49 kg @ 3,747 cm(1,232 cm Lift)]
• 144 Lbs. @ 1.498" (0.508" Lift) [EU: 65,32 kg @ 3,805 cm(1,290 cm Lift)]
• 143 Lbs. @ 1.501" (0.511" Lift) [EU: 64,86 kg @ 3,813 cm(1,298 cm Lift)]
• 140 Lbs. @ 1.511" (0.521" Lift) [EU: 63,50 kg @ 3,838 cm(1,323 cm Lift)]
• 124 Lbs. @ 1.562" (0.578" Lift) [EU: 56,25 kg @ 3,968 cm(1,468 cm Lift)]
• 120 Lbs. @ 1.582" (0.592" Lift) [EU: 54,43 kg @ 4,018 cm(1,504 cm Lift)]
• 304 Lbs @ 0.990" OPEN HEIGHT (EU: 137,89 kg @ 2,515 cm Open Height)
• Coil Bind @ 0.945" (EU: 2,400 cm)
• Recommended for 0.540”+ (EU: 1,372 cm +) lift camshafts
• 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.

FITS:

M-Eight 17-22 with factory style 6mm valve stems & triple groove, this kit includes Ti Retainers.

Fitment Guide

Specs