I went over to my engine builder's shop today and seen this. Talk about some major damage. This came out of a Late model dirt car. The funny thing is the guy was only on the warm up lap and was only at 3500 rpm's when this happen. That is a GM steel crank with some crower 5.7 rod's. The only thing that they "THINK" it might be is the crank has been in this motor since 2000'.