Yes, it will fit. We have the 69 440 bell in my son's Dart. The trans tunnel did not need any mods, BUT the 440 bell (and probably the 383) have a problem that needs to be solved. There is only one ball-stud hole on the side of the bell and it is not in the proper location for the A-body z-bar. The z-bar can be moved rearward, which also allows for more exhaust clearance or a special bracket must be fabricated. Keep in mind that one end of the z-bar must be able to be unbolted and slid out of the way.