Yes!! The small block has that small curve on the lower driver's side ("Dubob") even if the insp cover bolts are not clear in my pics. Mine definitely does not have that small curve. In the original pics I took on my camera you can see the 4 bolt holes as well even though you can't really see them clearly in the pics I posted (two of the bolts are still installed in the bell housing on the passenger's side if you look closely).
I'm still wondering how to determine that it's a car trans as opposed to a motor home trans??? I plan to call the guy and get the stampings off the driver's front rail on the tranny.