Valve Cover Stud Torque

[montmil]

Someone here abouts once said, IIRC, "There are some folks on this site that would get in a lifeboat made of JB Weld." He was not a fan.

Personally, I'd stay with the helicoil insert. I have one in the right-side head of my '81. As yet, no problemo. Just don't over-torque the puppy. Short wrench and just snug enough.   Monte

[Crossrodes]

Yes I used the helicoil.  

It's interesting what you said about a boat.  It's a long story but a friend of mine once had the casing of a water pump on a Perkins diesel on his boat crack.  He was away at the time and his wife, who was living on the boat, asked me if I could fix it.  We were in the Eastern Caribbean and I needed to get this fixed for her asap.  

I used JBWeld on the pump and now, 11 years later, that pump is still working.  The boat is in New Zealand.

JBWeld is amazing stuff.  I just hesitate to use it in an application where you have a threaded fastener.