the bearing was tight at the very rear and as it heated up the heat transferred to the front of the bearing where the very front still has coating.The autopsy has just begun as the radius on the crank really does not look wider than a stock 455 crank.As said before the owner supplied all the parts from a 3rd party and did the assm himself.Mike was a little concerned as the engine did not look like it was assm in a very clean room.So far nothing has been found that the owner did anything wrong.I think the issue has something to do with the after market crank and the Clevite bearing.I had a engine with a little copper showing at the very back edge of the rear bearing but nothing like this.Tom
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