Re: Head Bolt Thread Sealant
I was always told/taught that you never use RTV anywhere near a plain bearing or small oil passages. The belief was that small bits could get loose and block passages, like cam bearing, lifters, rods, crank journals, etc. Same with teflon tape.
I'd use a sealant designed for threads, not caulking a window frame.
Besides, I'd want to be real careful about what I put on threads that have to be torqued. If you get a hydraulic lock with the goop, its going to be impossible to get a valid torque reading. (I don't remember if there is drainage at the bottom of the threads for a headbolt on a Chevy V-8 to prevent a lock).
Later,
johnbo
