One f'n pic and you do not telll me a dammnnn thing about the car that I can't see from the one pic... Please lister,, please do not exert your lazy ass...................... !
In 64 you could headrests as an option on both seats, on one seat only ( pass or driver) or none at all. The seats I pulled from 64 had a factory headrest on the pass side only.
I have always loved these cars. I'd love to do one with a modern Hemi powertrain swap. Too bad there is such scant info on this one.
The most you could get was a 413 big block. The hemis were kept for the intermediates http://www.chrysler300site.com/cgibin/history.cgi?1964