PM on exhaust manifold bolts?

[tom3]

I'm wondering if it would be a good idea to remove the exhaust manifold bolts and put a dose of Never Seize on them? 4 year old Tahoe @ 30k miles. How common is it for those bolts to break off - even at this point? Might be asking for trouble to do this?

 

[Silverado4x4]

First off never seize will never last under the heat it's exposed too and 2nd as the saying goes "leave well enough alone " if you do it and break a bolt off your looking at a engine tear down to remove the head by having it drilled out to get the broken stud piece out of the head.

 

[Joseph Garcia]

There is a specific brand of exhaust manifold bolts that are strongly recommended by folks here. I cannot remember the brand, but other folks will chime in.

@Doubeleive , @iamdub , @OR VietVet

 

[Fless]

There is a specific brand of exhaust manifold bolts that are strongly recommended by folks here. I cannot remember the brand, but other folks will chime in.

@Doubeleive , @iamdub , @OR VietVet

ARP

A couple of tips for using exhaust manifold clamps

What ARP bolt #? I see several. At the time, I went with ICT billet for manifolds and oil pan but ARP for the head bolts. I already have a set of ARP oil pan to go in and considering manifold bolts, too.

www.tahoeyukonforum.com

 

[Doubeleive]

Arp

 

[Doubeleive]

I'm wondering if it would be a good idea to remove the exhaust manifold bolts and put a dose of Never Seize on them? 4 year old Tahoe @ 30k miles. How common is it for those bolts to break off - even at this point? Might be asking for trouble to do this?

Under ideal conditions the bolts should never break or ever need to be touched. I wouldn't worry about it unless one happens to break

 

[Trey Hardy]

I will say the arp studs are a lot easier to work with them trying to line up every single bolt especially if the exhaust is still hooked up and you’re by yourself doing it.

 

[OR VietVet]

Yes, ARP is the ones to get and I have used the studs before. They make great manifold hangers.

 

[iamdub]

I'm wondering if it would be a good idea to remove the exhaust manifold bolts and put a dose of Never Seize on them? 4 year old Tahoe @ 30k miles. How common is it for those bolts to break off - even at this point? Might be asking for trouble to do this?

If it were me, I would. Although, I wouldn't remove the stock ones, add anti-seize then reinstall. I'd replace them with ARP. Just do your due diligence when breaking the original ones loose- treat them as if they're older and could be seized. You can't be too careful. Knock on 'em with a hammer, try tightening a hair before backing out, etc. If you remove one and install the new one before moving on to the next one, you shouldn't even need to replace the gasket. Do them in the opposite of the factory-specified tightening sequence.

 

[OR VietVet]

Chase/tap all old threads before reassembly.