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Yes, those 5 heads are from a 1968-1968 350 engine. The 1972 350 engines used 7A heads.
All 350 engines from 1968-1976 used that same block casting number, so to determine what year block you have you need to look at the VIN pad near the #1 cylinder.
Yes, those 5 heads are from a 1968-1968 350 engine. The 1972 350 engines used 7A heads.
All 350 engines from 1968-1976 used that same block casting number, so to determine what year block you have you need to look at the VIN pad near the #1 cylinder.
well if all the blocks are the same then there's no difference to me but the 68 69 heads mist be alot better then the smoggers? Anyone know the differences ?
There's not really much difference from a performance perspective between the 68-72 heads (5, 6, 7, and 7A. They flow about the same, have the same combustion chamber volume, and the same valve diameters. The difference is in the valve spring area with valve rotators and induction hardened exhaust seats on the later heads.
