73 Duster V8 Core Support

I had a 1975 Dart 4 door that had the 26" radiator, disc brakes and an 8 1/4" axle. Those were components as part of the trailer/towing package. As odd as it seems, that option package was available on slant six cars.
This core support is a desirable panel but not limited to V8 cars. V8 cars without A/C could have had the 22" radiator.
I was just trying to provide accurate guidance.
Good luck with the sale.