SeventyMach1 said:I know this thread is old ...... but in searching, this question came up.
I'm ordering those Breslin's. Will 0.75" work? Or do I have to get the 1" ones?
You need to know how long of a bolt to buy ................... correct
If you knew the depth of where the bolt is going you could answer that question
Stick a nail or something like it all the way in the bolt hole and mark it next to the header flange and
Badda Bing ... Badda Bang
There you have it

btw ... a simple lock washer is not as flashy, or a part you can talk a lot about but, its cheap and it works.
Grady
yea, I had a similar problem, when i was putting on my intake manifold i stripped the very front bolt
I had to go take it all off again and get a helicoil, then re-do it again