Magnum head swap in factory ECU 2003 5.9 engine? Any Codes/EGR?

It’s a set of heads that aren’t in my possession at the moment, but I’ll have him send me pictures. They’re bad enough that the warehouse rebuilder who buys cores from my machinists said to send them to the scrap pile. But even worse than that is that they’re bad enough the person who I had them checked out for won’t use them. It about has to be split in half for that to happen.