Hood interchange ?

70-72 Valiant hoods will fit, but be aware of the differences in hood mounting to the hinge. 70 and some 71 hoods have a sliding plate in the hood, and the hinges have small holes. Some 71 and most 72's have fixed plate in the hood and large holes in the hinges. Mixing and matching can make for some frustration in adjusting the hood
You just need to slot the holes in the hinges as needed. Not a big deal.