350 from 76 L48 corvette casting 3970010 running when removed 12/75. Also 327 likely from truck date code 357-F-7 or June 7 1967 Both should be rebuildable cores. Also like new parts like 1” master cylinder ,Willwood cylinders, alternator plus more. $700 for all or pick -$350 for 327 $425 for 350.