bb dart radiator identification/ fan shroud question

Are you looking for OEM correct parts?

If so that rad is not.

There is a 67 ( one-year only) shroud but the 68-69 will work and is reproduced.

The BB rad vs the SB rad are the same 22", the difference is the outlet diameter and perhaps the number of cores.

Look at US Radiator and you can see the in / out size difference.

Go to mymopar.com and download the 67 parts book.

It will list the correct radiator numbers.

In a nut shell, 67-69 had a round top rad, 70 up had the square top like the one you have

you will also need to look at the side the outlet is on ( SB at least switched sides in 70, not sure if BB did the same)