Bill.S
That was what I thought also. However we are both wrong. I got out some of my old repair manuals and Ford did have a 289 in 63. The 289 2v was a code 2 on the vin and the 289 4V was a code 3. Straght out of my 65 Chilton's Flate rate and parts manual.
I know I learned something new.
Sorry for the earlier post David.