73 Plymouth duster question

[Todd Boyer]

Originally Posted by Myron Piatek

If you decide to change the taillights to a Demon and keep the front end, you will be limited to a '71 Demon with a high compression 340 or a '72 Demon with a low compression 340.

Side marker lights are also different between '71 and '72. I don't know how picky tech is with that or with any small differences between a '71 and '72 Demon grille.

Myron, I have a friend who has a Demon Stocker. The car is a '71 and is run both as a '71 and a '72. When he switches engines, he also switches the grille. I'm pretty sure NHRA and IHRA are OK with the '71 side marker lights when he's running it as a '72.