The lucky winners for cast cranks were 360’s and 400’s, followed by 318s and 340s and about everything else in 1973, except maybe HP2 and industrial engines. I have heard that heavy duty truck 318s used forged cranks up to1976 but unless I take it apart myself I take nothing for granted past 1970! I have even heard that late 1971 383s came with cast cranks to test the cast crank platform in big blocks...
