Valve Spring Kit - High Load Beehive with TI Retainers - M8

Highlights

• 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" lift.
• Springs will accommodate over 0.600" 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.
• Kit 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 system.
• Fits factory style 6.00 mm valve stem and triple groove.
• Seat lb/Installed Height.
• 151 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 height.
• 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.
• Only recommended for large lift camshafts and race style engines as these valvesprings if not set properly will create extreme rocker arm deflection.
• Coil Bind @ 0.945".
• Recommended for +0.540" lift camshafts.