Need help transferring 74 block parts into my new 89 block

Owen Diaz said

I’m planning on using the heads from the 74 engine if I can if not then I might have to order a set any reccomendations

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What's the casting number on the 89 heads? If they are closed chamber you may want to use those. Hardened seats as well. I know that the 74 heads are open chamber and non hardened seats.