Chevrolet: Engine ID, engine id, digit number

Question
I just bought a '66-C20. It is supposed to have a SBC 400. The stamped number on the deck in front of the bottom of the passenger side head is: F022IDJ. Could you identify the year and give me any other info for rebuild or repair purposes?

Answer
Robert,
      What you have there is the engine date code. The engine was made in flint feb 21st, but I need the casting numbeer to ID it. The casting number is found on the rear of the motor next to the distributor, usually to the left, and will be a six or seven digit number. You might have to degrease it to get there, but that is the number that will tell you what exactly the motor is and the application. If you can get that for me, I can tell you whatever you need to know about it.