CROWER  Roller Rocker Arms set of  8- 1.6 Ratio For 7/16 Studs for SBC  This set is in very good shape also has the C/L option that moves the body .050 further back for more spring clearance. This set also has Crower's needle bearing roller tip option for their rocker arms significantly reduces friction, increasing horsepower, improving valve control for higher RPMs, and extending valve spring and guide life by reducing heat and wear compared to standard designs, available on both stud and shaft-mount rockers for performance builds