[johnneilson]

Or, maybe he wants the comfort of knowing that he will probably not have to look at cotter pinned rod nuts through a picture window in the side of the block.

I would add that some of the head studs used over the years have had questionable integrity, and probably contributed to gasket failures, etc.

I can understand a "show restoration" not having the proper fasteners, I respect that.
But, I also understand that some people drive their cars and have the freedom to add or remove from said vehicle.

John