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Here is a few engine pictures that we took after removing it from a C6. We had nothing to do with it, until this point. This is one of the worst ones we have seen. It was a stock bottom end with a pretty aggresive head and cam package. It was at the road race track when it went away. We are thinking piston failure. The customer asked "How are you going to prevent this from happening again" I told him "We spent about 1400 bucks of your money on the best piston we can get"