EQ318B Magnum heads discontinued ?

TT5.9mag said

Depends on what you’re trying to do. You said reliable, so I’ll say stock Magnum heads. They’re fine up to about 400 hp. After that port them, and after that, edlebrock aluminum magnums.

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I rebuilt a low mileage 02 5.9l I added a small cam, header and intake. Nothing crazy.and the hughes spring kit. The heads checked fine. It's for a tow vehicle. An 85 Ramcharger. I haven't swapped motors out yet. But, I don't want to constantly worry about it. If there is a better alternative. I would swap them while on the stand