ROLLER ROCKERS 1.7 7/16 PRO-MAGNUM 396-454

COMP Cams Pro Magnum 1.7 ratio roller rocker arms for Chev big block with 7/16 studs, combine the strength of 8650 chromemoly steel and the weight savings of aluminum rockers to lessen the rockers' mass at non-critical areas, and strengthen the areas that take the most punishment. The results are rocker arms that are strong where they need to be, and actually weigh 5 percent less at the valve than comparable aluminum rockers.