Or 153, 194, 230, 250, 262, 265, 267, 292, 302, 307, 327, 348, 350, 366, 396, 400, 402, 409, 427, 454, 496, 572.....etc...
Well, Fbody BHs will clock the tranny over (as I recall) may not be what you want. I think better question is to ask if the T5 bolts to a “normal “ BH. I don’t know, just tossing it out there
I think that the 283 is drilled just for a starter that fits a 168-tooth flywheel. You will need one that fits one of those. Here's some actual info: https://www.4speedconversions.com/chevy-bellhousings.html