322 Engine number variant

I have a 55 Buick Century that should have the 322 Nailhead in it but the serial number is wierd...The number I found is V972962 and the numbers on the heads are 1166349-14 and 1166349-2...Any idea if this was a replacement engine or the one that came with the car or at least a 55 Buick 322? Thanks, Larry
 

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I didn't look at the engine number but the head numbers are consistent with your car. You should have a look through the reference section to help you with id.:thumbsup:
 
At the end of your engine id there should be a number 6 for a Century, so if your number is V972962-6 it's an original engine.
 
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