Getting ready to swap a 5.7 into my 73 Dart Swinger

Socket size is 1 1/6. The sway bar should bolt on, not welded. The four holes(two each side) that are through the flange in the "u" part on each side, is where a small piece of channel bracket bolts to. Then the sway bar bolts to that. The bar snakes through the center of the K member.