1972 small block nova bellhousing

[J.Montini]

Can someone please help? I'm looking for the factory small block bellhousing casting number for a 1972 nova. I was told the 621 is for big block and we know there wasn't a factory big block in 71 or 72. Can someone help me with this question, please?

[BARN FIND]

My 72 SS350 Camaro had a 621 in it when I bought it in 1978.

[Mr70]

Yep...1972 SB & BB shared the #3899621.

[J.Montini]

Hey guys, thanks for the info!