72 fitment aluminum radiator into a 1974?

hey fellas,

is there a reason that radiator fitment stops fitment in 1972?
even looking at OE spectre premium and such, the 73+ cars have different PN's

I have a 74 scamp with a factory 318. What am I missing to run one of the below? hose size? hose length? drilling some holes in the core support?

thanks!!!

looking at either this 22
3 Row Aluminum Radiator For Dodge Dart 1970-72 Small Block 22" CORE | eBay

or this 26
All 3 Row Aluminum Radiator For Dodge Plymouth Mopar Cars (26in Core) CC374 | eBay