I am not sure. I was going to get mine from moparts member fast383duster,
here is his website--- http://www.highspeedgraphix.com/index.html
he seems real nice and sent me some idea a while back. I have been hestitating trying to decide which ones to use. But since its a 340-6 motor, I was thinking the butt stripe with a 340-6 logo or something.
Now that I see a few flaws, I was thinking longitudinal(sp) maybe?? Not sure.