Found: 68, 69 and 73 340`s
We thought the same thing about the 68 Casting. Very strange that a 68 casting would be going into a 1970 car. We double checked the numbers and that is what is on the block. The numbers are correct.
We are going to wait a while before selling them to give the original owners a chance to find them. The only way we would sell the 69 at all would be to the original owners as I am keeping that engine otherwise. The other two will go up for sale eventually.