Brace on 340?

Just have a basic question about a 1970 Duster 340 engine (4 sp).

Is there suppose to be an "angle iron" type brace from the bellhousing going (at an angle) to the block located just beneath the oil filter (pass. side)? I have a 1969 318 (auto.) in a B-body with one of these factory braces.

Thanks for the help, as usual.