Install head bolts dry?
Many engine builders will tell you to lightly lubricate the “face” of the bolt head that comes into contact with the cylinder head with ARP ‘Lubro-Moly’ or equivalent. Do not put lube on any of the bolt threads. Lubing only the bolt face will make for more accurate torque angle readings, and will let the bolts stretch evenly.
Hope this helps...
Ron,
With a TTY bolt, lubing the threads is much less of an important thing.
With both types of bolts, clean threads are a good thing to have.
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<strong>what is the thread of the 11 mm bolts? I am about to do a head swap (puting studs in) but I don't know what the thread is (1.25, 1.5, 1.75, etc....)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It's none of them. It is some wierd size. What we did when we did a H/C job was we ground down the side of one of the old bolts. Then we put a little grease on it and ran it in and out a few times. Did a good job for us since we didn't have the correct tool.
<strong>I'm not sure exactly what it is. I need to get a thread guage.
Why do you ask?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I need to know so I can go order one.






