Galvanized bolts in exhaust manifold

[aarons 470]

Is it ok to use galvanized/ zinc bolts in exhaust manifold?

 

[Bt Doctur]

NO, plain steel bolts work just fine

 

[aarons 470]

Ok thanks. Why not will they gum up over time? Thanks

 

[Bt Doctur]

zinc bolts are a lot harder to burn out to remove a manifold not to mention dis-similiar metals

 

[Bondo]

Ayuh,.... Galvanized bolts are slightly larger diameter, 'n have their own thread sizes, so they won't wanta screw into the heads, anyways,......

Just use plain steel bolts,....

 

[aarons 470]

Thanks guys appreciate it.

 

[aarons 470]

I’m not finding the bolt length I need. These are long at 6”, no 5-1/2”s available.
so I’m using spacers about 3/8th” you guys see any problems with using spacers?