Bare block .. crank turned .10/.10 cam reground by Schneider Racing cams ,, Offenhauser 2-1 finned aluminum (NOS) w/ linkage Offenhauser finned aluminum valve cover. Several Holley glass bowl carbs block is standard bore. pre '59 cylinder head required for valve cover.. Used a '58 head and reworked for unleaded fuel also have '62 cylinder head . Dude #ad