66 Barracuda/Valiant dash frames

Yes, The dash frames are different, 1966 barracuda is a one year only dash housing and different than valiant. The frame was the same whether it was a base model barracuda or a formula S. Many people have made the swap, the dash frame should bolt right in. I imagine you will need the wiring harness for a 1966 barracuda as well, it might even just plug-in in place of the 65 harness if you’re lucky