Not going to read back through all of this talk about TTY bolts so I will just throw in my thoughts:


There is quite a difference in clamping force yield between 125 lb/ft applied to and through the shank of a long bolt and through coarse threads using PST to seal versus a fine thread with a moly lube let alone the drag of the underside of a wide flange bolt.

I'm pretty sure we delisted the studs due to availability, price, and hassle. Not that I ever had an issue with telling someone they did not need something or biasing towards what I sold. If I were doing an engine that I wanted to last it would use studs.