696 Believe it.
I wish responders would think twice before jumping in with a fact statements without really knowing some facts. A simple look at a 65 parts book will in fact confirm the 14 x 6.5 pn is 2530156 for C body application. It wasnt a B body app in 65. You see my posted reply gave exact facts, but just enough to inform the first post looking for period correct wheels for his supposed 64 wagon. Every detail wasn't required here but I could have gone further. Further more I enclosed a photo to add certainty of the style of wheel he was after. I have 50 'early' wheels in my collection of stuff to pull any variation out and show. In fact the 6.5 wheel was used even in the late 50's on 300's. It also was option on the rear of the 63,64 max wedge cars. The more one reads factory literature, old magazine reviews, parts books you can learn all this stuff. People that only have an interest or own a specific year car tend to have tunnel vision on what was done in cars 5 years or 10 years older or newer. Things differ even between 2 years.
So this reply releases a pent up frustration of so called experts that preface a post with "I think" "I believe" really dont add to the discussion and help the first question. For my own case, I know next to nothing on 71 and up B bodies, I've never parted one out, never owned one. and I never post to a discussion because I add nothing.