Got the verdict today, they found a nut in the 4th left valve and a bolt in the 3rd left valve. The nut and bolt that were found had nothing to do with the initial repair. This is the puzzling part, all nuts, bolts and washers from the initial repair are accounted for. So they are rebuilding the top half of the engine. Two new heads, new valves, fuel rails and coil packs. There was no damage to the pistons or block. FP only the XLR V has the supercharged Corvette engine. Here are some pictures from GM ICU............

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