Camshaft And Valvetrain Technology Insight Comps Ultra Pro Magnum Rocker Arms
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Although it already makes some of the most popular rocker arms around, Comp went all out with the creation of its Ultra-Pro Magnum rocker arms. Made possible by advanced computer design and measurement, they're made from investment-cast 8650 chromoly steel with an arched, weblike design for increased strength and rigidity. Comp says they're 29 percent stronger than the previous Pro Magnums. View Related Article
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