20psi stock 5.9 carnage

I know they’re tough. That’s why I’m wondering what the next point of failure is after the rod bolts, an estimated 800ftlb down low on a stock block would make half this forums head explode.
I think it'll be the piston. If he doesn't lean it out too much, it might live.....but then that's a lot of pressure goin on. It'll be an interestin thing to watch. Two things come to mind. Keeping it as COOL as possible and runnin it fat. Not pig rich mind you, just a little fat.