what trans and bell housing

First you need to find a B/H that has the correct hole for the front bearing yoke,and the B/H has to match the flywheel being use.The flywheel can be a 11 inch or 10.5 inch unit and the B/H needs to match that.The other item is you need a special flywheel for the externally balanced 360,or a flywheel with the movable counter weight,mrmopartech