you think the long stroke and shorter rods had more to do with the failure than the extra power? what rod length were you using?
See, that's what I was thinking as well, but what do I know.
(Personally never went over 3.75 until I got an aftermarket block, now I'm going way up to 4.500...but the reason for the 3.75 was much more about being broke, and much less about being smart)