Warning: Don't try this at home. I told Rick Yates I think I found a piston that just might work or not... I bet Dave King has done something like this before, well I hope he has.
I didn't know diesel pistons were 2 piece, I feel better already. The Panther doesn't rev very high being a long stroke 500 single. The bolts are just grade 8 1/4 20 cap screws and I am using red loctite 450 deg and the 1/2 inch diameter post goes through the new piston and is peened over, I was going to weld it but I thought weld could crack so I riveted it.