I see people talking about the early 230 400 blocks. BUt answer this honestly. How many blocks have you seen that broke in some fashion that was caused 100% by too much power? Not one that was broken from some outside influence like a broken rod bolt and a rod come apart or some such. Just a straight up busted block because it housed too much power. I'm not sure I've ever seen one. I've seen a lot that were tore all to hell, too, but it was always something else that let go that caused it.