[hssss]

No, I think that is the kind of info he is looking for. The LX in my garage that broke the crank has less than 80k on it with no power adder but the kid had southsides on it. I think the breakage has more to do with useage than hp. To me the bottom line is if you have no investment in a block start with a 351, no replacement for displacement, if you are going to run it hard get a 3.85 forged crank. If you are going to expect NASCAR performance find a Cup engine.