These Aluminum Roller Rocker Arms from COMP Cams® are designed for AMC V8 290-401, Ford V8 289-351 W and Oldsmobile V8 350-4 applications. Engineered with a 7/16" stud diameter and 1.6 ratio, they are made from a high quality aluminum alloy with a tensile strength of 80,000 psi. Needle bearing trunions allow valve spring pressures of up to 350 lbs. open pressure, making Aluminum Roller Rocker Arms a good choice for many street applications.
