Look for a marking on the left side, front of block, below cylinder head for an engine ID. Best way to tell is to look at the casting number on the sides of the block. It will also have a date code on the side of the block. It would read have a month-day-year. An LA 318 will have a later '66 and up date code. A Poly 318 will have a '66 or earlier date code...that is unless it is a Canadian built poly which went through '67. Email me with the part number on the side and I can check my reference book if you would like. Although, I have a '65 Coronet that had a 273 from the factory. I was told by the guy that I bought it from that someone had stolen the engine and trans out of it while the owner before him was at work so they put an LA motor in it. He thought that the car was a factory 318 car...it wasn't and the engine was the factory. It is funny how people shoot you a line of bull when you are purchasing a car thinking that you don't know any better anyway. Keep that in mind too. Some people know what a later 318 looks like but do not even know a 273 exists. Just some tips. Rick Rice 2 '64 Furys 6 '65 Coronets '67 Fury II Wagon '77 D100 Pickup '95 Dakota Sport '98 Grand Cherokee SE '04 Jeep Grand Cherokee SE ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.