I have two early fuel pumps, one an AC 9797 for the 1953 and 1954. I also have an AC 4052 which is exactly the same in appearance to the 9797 but Google says that it is for a 1954 Ford flat head V-8. When checking a photo of the 4054 it is entirely different than the example I have. Would any of the members have further information? AC Delco does not have information dating this far back. Thanks, Bruce