well I don't know about the pieces flying, my dad and his brother had an old chevy with a 216 they tried to blow up in that very manner, and it ran out of gas. so they sold it to a friend who drove it for a couple of years. Also from what I have heard from some of the fellas that used to race these engines 5000 rpm wouldn't hurt them anyway. (obviously with a lot of preparation) We have a sense of humor and enjoy a joke as well as the next guy, but you need to contribute something useful as well, this site has a purpose...