These hydraulic lifter cams are capable of 6000-plus rpm with stock springs and no valve float Excellent in the 2800-6500 rpm range Designed for big-inch stroker motors with head work Uses stock springs Works with stock hydraulics, with stock spring travel set to .560" minimum Must check coil bind, valve-to-valve clearance and valve-to-piston clearance. Made in the U.S.A.. ANDREWS EV7 CAM 84-99 B-T
