Decoding my 340
The number stamped on the driver's side is the engine number. The third post on this thread gives a good explanation 340 engine identification - Moparchat - Home of MOPAR enthusiasts worldwide!. Your VIN number is stamped on the passenger side and starts with 0 (1970) and R (Windsor). The last six digits is the sequence number. Here's a picture of the VIN number on my 340 in my 1970 Swinger.
The number stamped on the driver's side is the engine number. The third post on this thread gives a good explanation 340 engine identification - Moparchat - Home of MOPAR enthusiasts worldwide!. Your VIN number is stamped on the passenger side and starts with 0 (1970) and R (Windsor). The last six digits is the sequence number. Here's a picture of the VIN number on my 340 in my 1970 Swinger.