need 22 inch OEM style radiator

No because all OEM's have moved to Plastic tanks and Aluminum cores. Copper is expensive and the solder to assemble it is probably on the EPA's "no-no" list.

Look and see if Champion has one to fit your application. It may require some massaging but lots of folks here use them and they area all aluminum and welded.
Not for the 76 F body. Ones for 22 small block also has different inlet/outlet size. I will call their rep to see if I am correct.
I said 22 inch but I meant 26.