Exhaust Manifold Bolt Removal

[gungfusemaj]

Is there a particular spray or some liquid to help aid the removal of some exhaust manifold bolts with out breaking. I have to replace one of the exhaust gaskets/passenger side and I have read horror stories in the past years about the bolt breaking etc, and would like to do it once if possible, also if I am successful would you use the same bolts?

 

[Vinnietbird]

I've never had one break before.BUT,you can spray some PB Blaster on them and let them soak for a while.If the bolts worry you that much,you should grab a quality set of new header bolts and replace them while you're doing the gasket swap.

 

[Mustang5L5]

I've never had one break either. If anything, the heating and cooling cycles tends to keep the bolts from rusting in the head due to expansion and contraction. I have probs with them loosening up all the time because of this.

Soak with PB blaster, then give them a few whacks in the tighten direction before trying to loosen the bolts. They usually come out for me. Just make sure you have a quality wrench or socket to prevent from rounding the head

 

[gungfusemaj]

Thanks, just concerned..... its stock bolts on a 87 gt and the headers are a little beat up, are any of them more difficult to get to than others? I will probably be attempting to do this , this weekend.