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Comp Cams Ultra ARC 19021 Ultra Gold rockers are extruded aluminum components built in the USA to withstand demanding valvetrain loads. With a 1.7 ratio for 7/16" stud Chevrolet 396–454 big block applications, the arced, recessed and contoured design enhances strength-to-weight balance, improves oiling efficiency, and increases valvetrain stability for heavy-duty big block builds.
COMP Cams Rocker Arm Ultra Gold Arc BBC
