1969 Mustang Coupe Project Engine Front View
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These Comp Cams Pro Magnum roller rocker arms are made of 8650 chrome-molly steel and have a 1.6:1 ratio. Comp engineers lessened the rockers' mass at non-critical areas and strengthened the areas that take the most punishment. The result is a rocker arm that is as strong as they need to be, but weighs less than comparable aluminum rockers. They have a 7/16-inch stud size, and come complete with poly locks at a cost of $265.75 per set. View Related Article
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