hole in my head

I have always wondered if that kind of head milling could be done. I want to see if this head runs alright, if it does, I might try this with my slant six....

If that hole isn't through to the water jacket, have someone drill it and weld it up. Then just pressure check it. If there's enough metal there to keep the head from warping and blowing your head gasket, I see no reason why you couldn't run it.