Used Lakewood Part #15100 Scattershield
This can be used in most other Pontiac and Oldsmobile engine applications.
This particular housing appears to be in nice, but slightly modified condition at two spots near the starter bump, and the fork hole. (see pictures), with good threads.
This is a limited stock item. Pictures and description are of the actual part.
Although this is a steel safety bellhousing it is old and uncertified, there is no
warranty (except that, it is as described) of any kind on this part.