The valiant grille will bolt up but it looks totally different from a Barracuda grille, also the Valiant grille is aluminum, the Barracuda grille is pot metal. If your drivers side grille is OK then put up a wanted ad for a good passenger side Barracuda grille. Here are some pictures of a 66 Barracuda with the Valiant grilles (top) and one with the 66 Barracuda grilles (bottom).
View attachment 1715422655
View attachment 1715422656
