parts for sale

What size hole on the bell housing?

Sorry, sold. But, I do have a p/n 2892482, 10.5" aluminum small block bellhousing correct for :

1969-1971 A/B/C/E-bodies 273 318 340 360
1968-1969 A-body

It measures 4.5" ID with the tape measure.

I'll take $175 for it, if you're interested.