I could not find any other information on the car in other records. I will let you know what I find out from Bob about the Serial number on his car. Yours should be close to what his is. Pierce-Arrow did not install the engines in numerical order, so I can’t extrapolate your serial number using the engine numbers.
What number is listed on the pink slip as the VIN? If it is the engine number, it may be easiest to continue using it.
Your car’s record has been updated.