65 2plus2, thanks for the link. I thought I better start a new topic rather than continue hijacking your parts sale thread.....
On a couple of blocks that I've looked at I've noticed that the final letter code for the inspector is usually different between the oil pan stamping and the deck stamping, but the date code is the same. Such as :
5F2C on oil pan, 5F2S on deck
5E18C on oil pan, 5E18S on deck
Now, 65 2plus2 NOS block has a 6M28C on the oil pan. This fact, and from previous threads, I think general consensus is that the oil pan stamping is the finish machining date? Just say if you think that's wrong.
So, what about the deck stamping? On the examples I've seen, they have a different final letter to the oil pan, but the date code's the same. But it's hard to believe the motor could be finish machined and then fully assembled on the very same day? Maybe not?
Any other examples of oil pan and deck stampings on the same block? Is the date code always the same between the two?