Yikes! That's quite a price tag for sure! For a rebuild.
Everything we do is dyno tested, 30 month, 50k mile warranty. Chrysler long blocks start at 5k. For a core free, running engine. Chrysler Compatible Crate Engines
We go clear up to a roller cam, aluminum headed 408 with about 470 hp. Details on that new one over in the BluePrint Forum :)