I don't think the block was ever intended to "hang" from the 59 type cast bell housing. In its in-car position, the engine is supported by mounts at the front of the engine and at the rear of the transmission. The assembly would want to sag at the joining point of the two. This would put tension on the lower portion of the transmission mounting point and pressure on the upper, cast, bell. Hanging it from the bell on an engine stand places the reverse forces on it. The engine stand tries to hold it with fewer bolts unless an adapter is made such as Walt uses.
The 8BA engine doesn't have an attachment point below the block (except for the truck bell and oil pan connection) and is designed to support from the upper bolts. But there are six bolts holding the bell housing instead of the four on an engine stand.
Testing a few more engine stands.
R
I agree a plate would distribute the load and help a lot! I happen to like the side mounts, but there are other ways to go about it that's for sure.Much of the problem is also the quality of the engine stand. Using a poorly designed $99.00 Horror Freight engine stand,as well as many others.All this only complicates the stress on the engine contact points. Some of the members should take their engine stands and see how mush difference there is in being flush when tightened up not on an engine and then setting the head on a steel plate and you would be surprised how out of whack there cheap engine stands really are.You won't find any 99.00 stands used in a quality machine shop.Fabricate a 1/2" steel plate that has the bolt pattern drilled to match the bolt pattern and throw away the original cheap arms.This provides much more surface area for contact.
R
These are a little hard to see because they did a good job on the repair. And just for the hell of it I uploaded some photos of the engine mount I fab'ed. (as a note, I'm not the one who broke the bellhousing in the first place!).
I felt the same way but it worked fine. I believe I bought my exhaust port mount from Red's headers. Everyone says absolutely not to use the bell housing as it could break, destroying your block.