Still keeping the Blazer, right?

Another thing, this won't be going in the blazer anymore... I just picked up a 67 chevelle and it'll find its way into that. The down side to the chevelle is that it's a 4 door, but I like the 4 doors, so no big deal to me.
Well the important thing is that your keeping the big block. Wow, 4dr Chevelle BBC....going to be a nice sleeper?
I've got a 1970 4 door Impala with one of my spare 454's going into it. Going to keep it all stock looking.
Just an update on this thing. The heads are at the machine shop. When I talked to the guys over there they said the best thing to do would be to just do a basic valve job and then set them up with the new springs and seals. They said if I were to do anything else like put big valves in them, I may as well just get aluminum heads b/c they'd end up only being a little more in price.
Another thing, this won't be going in the blazer anymore... I just picked up a 67 chevelle and it'll find its way into that. The down side to the chevelle is that it's a 4 door, but I like the 4 doors, so no big deal to me.
What casting are they?
Martin