someone school me on my A833 for my swap Please

Ok AJ/Forms. I have a new perspective on what I want to setup. I will probably swap in a different 833 after I get it together, right off the bat I will only be running a 318, which is in the car now, but my question in if I bought the overdrive bellhousing, with the 5.125" hole, can I use that on the smaller bearing faced 833's with a spacer ring? Ive seen some pictures showing a ring to fill the gap for the smaller inputs on a larger opening of the bellhousing.