FEULING PARTS Valve Spring Kit - High Load Beehive® with TI Retainers - Twin Cam | XL | XR 1205

Valve Spring Kit - High Load Beehive® with TI Retainers - Twin Cam | XL | XR 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.