Joined: Apr 2018

Posts: 1

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Pulled ls3 from corvette to replace cause it has no compression. Pulled engine apart and to see that all pistons are somewat melted around the edges, one pistons has a valve ding on it. Spark plug holes are melted and two plugs are siezed up and couple plugs tips where burn off and missing. Valves and pistons also have white dust type material on them. My question is that, is this from Nitrious failure or somewhat running lean? Or some type of high octane fuel. Not even 9,000 miles on motor. This engine come out of a 2013 Corvette.