Feuling High Load Valve Spring kits

FEULING HIGH LOAD premium performance BEEHIVE valve springs handle up to 750 lift camshafts on Twin Cam, Evo and XL. Up to 565 lift on M8 models with out seat pocket cutting. Over 0.600 with seat pocket machining. Designed for steep ramped large lift camshafts - These Feuling valve springs are made from premium stress relieved conical ovate wire with a nitrided surface heat treatment, shot-peened surface enhancements along with a Nano Peen polish. They have an extremely high level of fatigue life and are designed to handle the highest demands of performance engines with high lift, steep ramped camshafts. Dyno proven and track tested. FEULING BEEHIVE valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs. up to 750 lift camshafts on Twin Cam, Evo and XL. Up to 565 lift on M8 models with out seat pocket cutting. Over 0.600 on M8 with seat pocket machining. Eliminate valve spring separation, maximize stability, reduce valve-train noise & harmonics! Available for 5/16", 6mm and 7mm valves FEULING BEEHIVE valve springs must be installed at the correct OPEN HEIGHT, matching max lift to the open height spec of the valve springs. Kits include: FEULING HIGH LOAD BEEHIVE valve springs, lightweight Titanium retainers manufactured from Ti-17 alloy and micropolished for enhanced fatigue life, machined heat treated chrome moly spring seats, seat shims and valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system. Dont get stung by inferior valve springs! Quicker Revving - Smoother Motion - Light Weight Ti Retainers Fit up to 750 Lift Camshafts (Twin cam, Evo & XL) Fit up to  FITMENT OPTIONS: EVO/Twin Cam Big Twin 84-04,XL 86-03, Buell 95-02, 7 Degree Std. 5/16 valve stem and keeper groove Twin Cam 05-17, XL 04-22, XR 1200 09-13, 7 Degree, 7mm valve stem with stock triple keeper groove TC Screamin Eagle Heads with 5/16 valve stems with std keeper grooves and .530 diameter valve guides. M-Eight 17-24, stock 6mm valve stems with triple groove, Stock & SE heads Twin cam / Evo / XL Spring specs: SEAT Lbs. / INSTALLED HEIGHT 217 Lbs @ 1.789 (0.574 Lift) 215 Lbs @ 1.800 (0.585 Lift) 208 Lbs.@ 1.819 (0.604 Lift) 200 Lbs @ 1.845 (0.630 Lift) 185 Lbs @ 1.900 (0.685 Lift) 170 Lbs @ 1.935 (0.720 Lift) 415 Lbs @ 1.215 OPEN HEIGHT Coil Bind @ 1.125 M8 Spring specs: 151 Lbs. @ 1.475 (0.485 Lift) 144 Lbs. @ 1.498 (0.508 Lift) 143 Lbs. @ 1.501 (0.511 Lift) 140 Lbs. @ 1.511 (0.521 Lift) 124 Lbs. @ 1.562 (0.578 Lift) 120 Lbs. @ 1.582 (0.592 Lift) 304 Lbs @ 0.990 OPEN HEIGHT Coil Bind @ .945