Cracks in LA and Magnum heads....Have you tried running them anyway?

I’m sure there are tons of success stories of people running the Chinese replacement magnums ootb……… but I wouldn’t risk that myself.
The main fear being having some stuck valves in short order.

I suppose some guide honing might suffice, but I’d be much more comfortable with some bronze liners, but then the seats need to get recut………and by then you’re well beyond a set of $700 bolt on heads.