Posted 5/2/2014 19:38 (#3850476 - in reply to #3850345) Subject: RE: A question for the engineers and metal men-------
NW Montana
My opinion is based on my experience as a pipefitter and working on failed castings now and then.
The bolts are stronger than the cast but the castings have to hold the bolt, Castings typically break around bolt holes.
I would put as few spacers as possible. I would put the 20s to the inside.