The '69 will stay numbers matching, along with the '68 400 4 speed. What good would it do to put the engine into storage in less than optimal condition, and if I was to pull it out later for use it would have to be rebuilt anyhow, so I will just do it now. But I don't want to alter the block.

I have two more that are not numbers matching. I also have another fine 400 block if I decide later to build something else to thrash.

I'm looking for a '67 vert for that '67 engine.