Engine test stand bellhousing for 318/360

My buddy has an engine test stand for breaking in engines before installing in vehicles. He said I can bring my 360 over and hook it up to his stand to break it in before I drop it in my Duster. He is a Ford guy and doesn't have a bellhousing for a 360. My tranny is a 904 so I have no bellhousing to attach the rear of the engine to the stand. Is there a bracket or any tips you guys have on what I could use to accommodate this? Thanks!