Odessa / Procomp heads--pushrods?

My Pro Comps (aka Speedmaster) look to be bigger than the stock LA holes. You'll just have to mock it up and find out. It also depends on the lifters used. some have low seats to help like Hughes ad others.

I suggest getting the heads from Mike at MRL. He did mine, price was good, components installed were of known good quality and the install/ machine work is excellent.