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COMP Cams Rocker Arm Ultra Golds Arc SBC - cca19004-1 missing-image 6555cc Engine Components::Timing Chains 1974The original Ultra Gold Aluminum Rockers changed the way racing and high performance street engine builders approached valve train design. Now, COMP Cams is revolutionizing valve train performance again with the next generation of Ultra Gold ARC Series Aluminum Rocker Arms, featuring an Arced, Recessed, Contoured design. Using cutting edge design techniques and manufacturing processes, Ultra Gold ARC Rockers increase engine power, enhance valve train