Bryon (bcmiller) - I got the casting date of my head posted about earlier on 10/09, it is K 9 8. So block was K 11 8 and stamp on pad is F1112AN. So head was cast Saturday Nov. 9, 1968, block was cast Monday Nov. 11, 1968, and engine was built Tuesday, Nov 12, 1968. Amazing to me that parts moved that fast but I've never studied it that closely before! Sure many have seen similar. I do have a matching numbers 1971 Nova I'm going to check out the casting dates of 350 block vs heads vs pad stamp vs TH350 vs vehicle VIN...