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The COMP Cams CS 300Rx‑7 camshaft targets late‑model builds around 430 ci with good heads and light valves, offering a cam profile matched to high‑displacement applications needing compatible valve train components. The listing reiterates that 1955–57 small‑block Chevy engines with an oiling groove in the rear journal will not accept these part numbers; contact us to order the grooved‑journal version if required.
COMP Cams Camshaft CS 300Rx-7
