Dodge dart radiator swap

it will bolt in and physically fit, but you will need the cast iron water pump and pulleys from the 68 318 car as well....in 70 and up small block cars came equipped with an aluminum water pump, which is a little longer in length which also uses a different offset pulley configuration.. which also had the outlet on the passenger side...using a different radiator as well..with a passenger side lower outlet, and driver side inlet..