V8 bellhousing

Have a nice SB aluminum V8 bellhousing casting # 3633728 with a production date of 1978. Not sure what it's for but the bearing hole is 5-1/16" and it uses an 11" clutch. Was told it is for an OD trans but I don't know if that's true. If anyone has any positive info on what it fits I'd sure appreciate hearing it.

Not sure what to ask but I have to put some price on it so lets start it off at $65 plus shipping OBO or your welcome to pick it up here free. Located half way between St. Louis MO and Springfield IL 3 miles off I-55

PM if interested.

Pictures added. When I was taking the pics I noticed one of the large bolt holes has stripped threads. Sorry I didn't notice it earlier. I have added OBO to the price cause I know the stripped thread lowers the value some.