1966 Barracuda engine swap to a 340 Six Pack

The six pack intake will fit any year 273, 318, 340 or 360. No, big block carbs and intake are different. The small blocks used smaller carbs, and big block intakes are totally different (may just be smaller center carb, cant remember). 1970 AAR Cuda and TA Challenger were the only thing to use 340-6 from the factory.