- Aug 5, 2019
- Reaction score
- My Car
- 72 Mustang Q-code
Don, did you notice the O4M date on the head? I'd venture the heads and intake both came off a '71 M-code. The 4-dot heads could be either closed or open chambered but the ones recorded in 351C.net's 4V Head Repository with similar date codes are D1AE GA closed chambers. Thoughts?Yes, the H code block could have the same numbers, plus the date seems to match your car. The heads appear to be Q code 4V open chamber with a square bore intake manifold from an M code.
Getting the partial VIN from the back end of the block will tell you a lot. If it doesn't have a partial VIN that means it is a replacement block.
The symbol with the "F" in it means Cleveland foundry.