26-11-2019, 09:26 AM
Screwing new manifold studs into a block, it became clear that standard 2 5/8" seemed too short, which I can now see is probably due to wear in the thread on the block edge. They hold fine and tight (I don't want to helicoil) but don't leave me enough left for the brass nuts. The next size up are 3 1/4" which would be too large without extra washers.
The ones that I'm taking out indeed seem to fit well for my manifold and block... they are about 3" or a tad under. And probably date from 60 years ago plus. Has anyone else had to make up or source odd studs for the same situation on an old block?
The ones that I'm taking out indeed seem to fit well for my manifold and block... they are about 3" or a tad under. And probably date from 60 years ago plus. Has anyone else had to make up or source odd studs for the same situation on an old block?