what des it take to stroke a 360 to 408?

moper said
So what was done after the cam went bad? The engine should have been completely disassembled to bare block, cleaned, and then reassembled. If this wasn't done there could be damage to rings and stuff that is causing a severe drop in performance. I am also interested in what it has for cylinder pressure. It sounds like there are problems throughout the process. The size of the engine isn't holding you back. The execution of the build is.

Moper you said it best: "The size of the engine isn't holding you back. The execution of the build is. until you find out exactly what you have or don't I wouldn't put too much more into it, you might need to redo it after all, and at that point the 408 IMO would be the way to go.