Thank you.

I would assume that some of the newer engines using the torque-plus-angle tightening method actually do torque to yield.

However, I have been hearing the same old story since before TTY bolts were thought of in automotive applications. It seems that it is easier to spend someone else's money telling them to goldplate a project, than telling them where the $$$ can be saved. And of course, rod bolts are a different story.

BUT, as I said earlier, if you have a few thousands stuck in a motor, then a couple of hundreds for new bolts doesn't seem out of line.

R.