High Load Beehive valve spring kit. .600" lift

Installed pressure 151 Lbs@1.475" (0.485 Lift), 304 Lbs@0.990" open height, coil bind@0.945". High tensile chrome silicone wire with a shot-peened heat treatment and a super NexTex® finish. Kit includes springs, lower collars, titanium upper collars, shims, keys and Viton® seals. Fits OEM style 6mm valve stems and triple groove lock. Note: Bolt-in up to 565" lift. For use on high lift cams only. The increased valve spring loads will create extreme rocker arm deflection with smaller cams. Note: Cam specs measured on the lifter @ 0.050 lift with 1.61 rocker arm ratio