BB Head Bolts

[mr.nova]

I was listening to a discussiion at work and this question was being kicked around. What do you use on Big block cylinder head bolts? It started to get a little heated with the many different opinions. So baring that in mind ,with all those different opinions,I thought it would be interesting to see what the answers would be here at the forum. What do U use on Big Block Head Bolts ? Permatex,Liquid Teflon,Anti-seize,etc. To see what the outcome would be if any different.
My answer would be, I have used Permatex last time I put my engine together.

[wheelhop]

I usually use a torque wrench

[elonblock]

Are you asking about what to use on the threads, or am I misunderstanding your question?

[mr.nova]

Yes you are correct.My fault, Sorry,I should have mentioned it that way. Like this --> What are you using on the head bolt threads ?

[elonblock]

My best experience has been using a thin coating of a blue permatex type of sealer on spotless, clean threads. This applies to old and new head bolts.

Also chase the threads in the block with a tap, to clean out any excess gunk which may have fallen from the disassembly process. Followed by a good blast from an air nozzle,for anything left in the bolt hole.

Follow the tightening sequence, and torque steps, and you are good to go!

[olredalert]

------Permatex No.2 (black looking) is what I have always used. It never hardens or sets like the Permatex blue stuff. I agree on the thread chasing, on both the bolts and the block. After chasing the bolts run em over a wire wheel to get any barbs off!!!........Bill S