That is a beautiful Polara whether it has a 383 or a 440.
440 and 413 blocks are almost identical. The 2nd photo would seem to be a 383 but theres too much hardware blocking the rest of the pics.
Pftttttttttttttt.Oh, and there is one ringer in the bunch....
Clearly no HEMIs, they did make a 426 wedge.