Center drag link, are they really $600? 1964 dart

I'm sayin this once more, now see if it gets through. You may not need the V8 center link. I 360 swapped my 65 Valiant years ago and did not use one. I used the same slant 6 center link the car came with. Clearance was close. I think there was like 1/8" if I remember right, but this is a clearance that will not change, unless a motor mount breaks or crushes from absorbing an Exxon Valdez amount of oil. So it's very possible you're doing something before you need to do something. Here's a tip. Don't do anything until you know you have to, because you may not have to.