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crankshaft journals
I have a 390 engine out of a 1966 Ford Thunderbird. The engine was rebuilt and there is a tag indicating the rod and mains were ground down to .020 under. I have the engine torn apart and plan to mic. the journals to see if they are still within specifications. Problem is can't find the specifications for a 390 crank that has been ground down .020. Anyone know the journal sizes so I can check it with a micrometer?
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