HYDRAULIC ROLLER: For use with 1.7:1 rockers. Major modifications, 3.55 gear or lower, 2500 stall.Lifter Type: Hydraulic Roller LifterEngine Family: Ford 5.0L 8 cyl. 1982-2001SpecificationsRPM Range: 2200 to 6200Valve Timing: 0.006Lobe Separation:...