I don't know if anyone is following this story over on corvetteforum, but the drama is off the charts. Here's a link:
http://www.corvetteforum.com/forums/...-is-blown.html
Anyway, whatever caused the failure, whether it was a manufacturer defect or owner abuse, I don't know. But according to the OP, there are four more engine failures that he knows of:
http://www.corvetteforum.com/forums/...post1588619937
So this may be more than just an isolated indecent.