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"A" SERIES 848-127Scc ENGINES. TAPPET DIAM. = .812
STD ROCKER RATIO = 1.25:1 BMC A SERIES CAMS ARE 5 DEGREES RETARDED FROM THE FACTORY. OFFSET KEYS REQUIRED TO CHANGE CAM TIMING. NITRIDING STRONGLY RECOMMENDED FOR ALL BMC RACING CAMS.
WE RECOMMEND NITRIDING ALL BMC RACING CAMS.
