Features

• Made from premium stress-relieved conical ovate wire with nitrided surface heat treatment, shot-peened surface enhancements and Nano Peen? polish
• Uses a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion
• Designed to handle the highest demands of performance engines with high-lift, steep-ramped camshafts
• Allows up to 0.750" lift cams; no rocker box clearing required
• Features extremely high level of fatigue life
• Dyno proven and track tested
• Kit includes High-Load BeeHive? valve springs, lightweight 10? Titanium retainers manufactured from Ti-17 alloy and micropolished for enhanced fatigue life, 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
• Made in the USA
• Seat lb/installed height:
• 170 lb at 1.935" (0.720" lift)
• 185 lb at 1.900" (0.685" lift)
• 200 lb at 1.845" (0.630" lift)
• 208 lb at 1.819" (0.604" lift)
• 215 lb at 1.800" (0.585" lift)
• 217 lb at 1.789" (0.574" lift)
• 415 lb at 1.215" open height
• Coil bind at 1.125"
• Valve springs must be installed at the correct OPEN HEIGHT, matching max lift to the open height spec of the valve springs.
• Feuling? BeeHive? valve spring kit is direct replacement with no machining or rocker box clearance required. Up to .574" lift for '84-'04 Big Twin and '86-'03 XL and up to .700" lift for '05-'17 Twin Cam. Larger camshafts require valve guide machining for seal-to-retainer clearance.

Specs