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COMP Cams Magnum double-row timing set for 1955–1981 Pontiac 326–455 engines combines an induction-hardened cast iron cam gear with a billet crank sprocket and a heavy-duty heat-treated double-row timing chain. The three-keyway crank sprocket enables incremental timing adjustment within a 4° advance/retard window, and the complete kit includes gears and chain for dependable mild street performance.
COMP Cams Magnum Double Row Timing Set Pon
