I’m in the process of installing a set of the repro 428 CJ exhaust manifolds w/factory style bolts. I was able to figure out all but one of the bolts. One of the stud style bolts is different, I’m guessing this was for a heat shield maybe? The longer one fits in the right front bolt hole, but not sure about the correct location of the shorter stud.
This has a great picture of that : 428CJ dot Com Heat Shield bolts
That helps, I also forgot about the engine lift brackets. Now I just have to remember where I put them…