1966 Barracuda-Round 2

Nice looking 66 Barracuda it's my second favorite year after 65. Be careful with pudding the 360 from the van into your car because it was an externally balanced engine balanced on the torque converter. Unfortunately the 360 torque converter will not work in your original transmission. If you did not have the 360 internally balanced then you're going to have to use a special torque converter made for your application. You also have to modify the passenger side motor mount from the 273 to make it work on the 360. A little welding is involved there. The exhaust manifolds from the 273 will have to be used on the 360.
Also I don't believe a stock 15 inch wheel will work on the front end of that car because of Fender clearance in front of the tire unless you modify the fender of course. It also me rub on the frame when turning the wheel all the way to the left or right. He might have to do 14s on the front and 15s on the back unless you use a very short profile Tire. A dual Reservoir master cylinder should be in order too to upgrade your braking system. When you change to the 8.25 rear end you're going to have to shorten the drive shaft a little bit or the yolk of the drive shaft will bottom out and the transmission. I am sure there's other things that I haven't thought about yet, but welcome to the site.