Steel Bolts in Aluminum Head?

[PhilBernardi]

Has anyone encountered factory installed steel bolts for exhaust manifold going into a factory aluminum head? Dropped truck off at repair shop to replace driver side exhaust gasket and they tell my two of the bolts are steel going into aluminum and are having problems extracting them.

Does the factory setup for all this use steel bolts into aluminum heads? Are they supposedly stainless steel bolts?

What type of bolt should be used when tightening down the new gasket? Use stainless steel bolts?

Any help is greatly appreciated.

Sincerely,
Phil

 

[DILLIGAF]

If a shop cant weld a nut onto a broken stud for extraction, dont take your truck there... lol...

HEMI bolt extractions are an everyday thing, Not hard at all.

 

[PhilBernardi]

Thanks, Dilligaf. I agree. Time to throw a pity party. :-/

 

[kirk35]

To answer your question, yes, carbon steel bolts are the correct fasteners in this application.
Dilligaf is also correct, find another shop. I spent all of 10 minutes welding nuts on two broken bolts on my 2011. After that I didn’t even need a wrench to back them out.

 

[GTyankee]

I think that you will find, that the broken bolts are the ones holding the Heat Shield on.
The bolts are a 1 time use product
so all the bolts on that particular manifold side need replacing