what is a K frame

Thank you for all this info. Lots to chew on. Would be hoping just to find the bezel/plate for the manual trans, whether floor or column. I think I mis stated, what I mean is I want to go from a V-8 to a six.

also, a related dash bezel question -- for ones that had later radios/tape, etc. put in place of original am radio, you would hope the dash was not cut but if it was---- is that a separate part that can be found and just bolted in to replace the cut one?