HIGH LOAD BEEHIVE SPRING KIT

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 performanceFEULING® 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 springsValve springs are a direct bolt-in replacement, no spring seat or rocker cover machining required up to 0.565” liftSprings will accommodate over 0.600'' cam lift, but will require spring seat pocket machining on the cylinder heads to set correct spring open heightSmaller lighter weight retainers which drastically reduce the valve weight creating a quicker revving and smoother motion than comparable dual or single valve springsEliminate valve spring separation, maximize stability, reduce valve-train noise & harmonicsKit includes: 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 systemSeat lb/Installed Height151 lb @ 1.475'' (0.485'' Lift)144 lb @ 1.498'' (0.508'' Lift)143 lb @ 1.501'' (0.511'' Lift)140 lb @ 1.511'' (0.521'' Lift)124 lb @ 1.562'' (0.578'' Lift)120 lb @ 1.582'' (0.592'' Lift)304 lb @ 0.990'' open heightCoil Bind @ 0.945''Recommended for +0.540” lift camshaftsFeuling® BeeHive® valve springs must be installed at the correct open height, matching max lift to the open height spec of the valve springsMade in the USAOnly recommended for large lift camshafts and race style engines as these valvesprings if not set properly will create extreme rocker arm deflection.EU: Valve springs are a direct bolt-in replacement, no spring seat or rocker cover machining required up to 1,435 cm liftEU: Springs will accommodate over 1,524 cm cam lift, but will require spring seat pocket machining on the cylinder heads to set correct spring open heightEU: 68,49 kg @ 3,747 cm(1,232 cm LiftEU: 65,32 kg @ 3,805 cm(1,290 cm Lift)EU: 64,86 kg @ 3,813 cm(1,298 cm Lift)EU: 63,50 kg @ 3,838 cm(1,323 cm Lift)EU: 56,25 kg @ 3,968 cm(1,468 cm Lift)EU: 54,43 kg @ 4,018 cm(1,504 cm Lift)EU: 137,89 kg @ 2,515 cm Open HeightEU: Coil Bind @ 2,400 cmEU: Recommended for 1,372 cm + lift camshafts

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