Magnum exhaust manifolds ball-flange to LA pipes?

67Dart273 said
I may have a scrap LA head pipe and mag manifold I'll "try fit" them. I can't imagine they are that precision. The 5.9 ones are larger, or at least a pair I have

If the outlet is 2 1/8 on the magnum manifold it is a RT 360 magnum one
Std were 1 7/8