Are the radiator hoses different on a 73 and 72 ford pinto?

Are the radiator hoses different on a 73 and 72 ford pinto? - 1

Yes

Tougher emissions laws starting in '73 required additions and changes under the hoods of all cars. By 1976, cars were way down on power and had big heavy bumpers.

Will depend on any engineering changes made by ford and when they put them in place. A simple check with a Ford dealer can soon tell you if a part number has changed and when.