Found my dads original 1971 duster!

CFD244 said
No, that's correct. The core of the rad is installed closer to the engine.

That fan is wrong as well. Probably out of an aspen or Diplomat or something.

You were right. My friend verified with his rad and his core is almost all the way to the water pump side of the rad frame too. He has a 1971 340 duster