CAMSHAFT, ROCKER ARMS AND VALVES (303 CUBIC INCH (4965 CM3) ENGINE) (ENGINE SERIAL NO. 088679-200850) (MANUFACTURED 1967-1971) (329 CUBIC INCH (5392 CM3) ENGINE) (ENGINE SERIAL NO. 200851-248020) (MANUFACTURED 1971-1972) (ENGINE SERIAL NO. 248021-621