Help identifying/6

It a GT
Doesn’t it seem possible that it original. If The motor stamp date is 12/27/63 awful close to 1964 model year .
I’m not building a complete original show car so not to worried about #’s match .
Thanks for taking the time to help me out . Nice to have this resource .
If You read the link to the other thread posted by memike, I listed the coding for the engines of Your era, I made this error a couple posts up Myself. The "T" is the model
year or "Series" as Mopar called it, the model year runs from roughly the August of the previous year thru that year up to August, that means an engine destined for
a '63 model "T" would have to be built just prior to Aug '62 thru Aug '63........a build date of Dec. 27th would have to have been in '62 for a "T" model year.............
And Welcome to FABO!!