I now that headman makes a set for B-Body but I have no real life experience with them. I had to purchase a set of TTI's for my A-Body.

one thing you can do is see if a set from a srt-8 jeep will fit. more than likely they will the exhaust flange is turned down. lots less money for a set of these. this area of Moparts is full of good knowledge.

Good Luck