I used TTI headers and a Summit universal 27.5x19 rad for my 73 Dart swinger
I will have to look up the part number for the TTI headers, it’s been a few years since I owned my dart.
On the headers fitting I did not have to beat any tubes etc to get them to fit. My car had a flaming river aftermarket steering box.i did have to grind down a rib on the box. One of the tubes was touching it. But didn’t have to grind much. Also had to remove the pitman arm grease zerk. That was all I had to do to get the headers to fit.
I laid the headers in the engine bay and had my brother and his wife hold the headers out of the way, while I dropped the engine/transmission in as one unit. I also installed the engine trans with the starter bolted on. Took me less than a half hour to have the engine headers etc bolted in.
My car came factory with Disc brakes.
Also for got to add the only thing I removed on the front suspension was the steering column, everything Elese stayed bolted in.
Back to the headers if you decide to get the 2 inch tube TTI headers, I found out if you drill a 1.5 to 2 inch hole in the inner fender. It makes it a hole lot easier to get to number 6 spark plug.
The rear tires was the M/T 275/60/15 ET Street radial. The rear wheels were weld drag lights in a 15x8 with 4.5 inches of BS. On my 73 dart the rear springs were moved in 3 inches but the wheel wells were untouched. I hope I was able to answer all your questions, but if I missed one or you have more please feel free to ask.
