[jwgn777]

Originally Posted by JFP in PA

The engine’s serial number is just above the sump rail on the side of the engine (lower left in pic):



Crawl under the car and write it down or take a picture; if it contains the letters "AT", it is a replacement engine.

Don’t ever expect a dealer to be helpful on this, they never are…………..

Are the letters (AT) at the beginning of the number? have to put dye on it it's hard to read. If the engine is original in a 911 would it contain a part of the vin like a GM vehicle does?