Mike you are correct, there is no vin on the engine but it does have a letter and six numbers stamped on a machined pad at the front of the right cyl. head. The first letter indentifies the engine as a correct 65 442 400 ci. The next six numbers are a production sequence date code just like the body has. The Fisher Body number plate or (protecto-plate) has a 12 digit number and one letter, the first seven identify division, series, engine cyl's, body type , year, and assy. plant and the last six numbers are a plant sequential production number or date code. So the car could actually be numbers matching if the engine date code is before the Fisher Body date code the way I understand it. The book I have deciphers everything except the two six digit date codes. Don't really care I need to get the car running again, ordering a quality reman. carb this week. I'm in my late 60's so would like to get that big 345 hp 400 in there before it's too late!