Exhaust System From headers to exhaust tips

Exhaust Manifold gaskets

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Old Mar 6, 2007 | 08:29 PM
  #1  
97ss497's Avatar
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Exhaust Manifold gaskets

I'm installing Mac's on my girlfriends 99z and need the part number's for GM's exhaust manifold gaskets (to head) and 3 smaller gaskets for emissions hook up. I want to purchase on GMPartsdirect.com. The local GM dealer is closed so I can't call and ask. Is there a link to common part numbers for an LS1 on this site anywhere?

Thanks in advance.
Old Mar 6, 2007 | 09:07 PM
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12558573 Exhaust manifold gasket

I like the metal gaskets the best. I believe that's what they are.
Old Mar 7, 2007 | 01:23 PM
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Question

Not to hi-jack the thread but when installing embossed metal exhaust gaskets does the raised part go toward the head or the header flange?
Old Mar 7, 2007 | 03:10 PM
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^they should be labeled. "head side" or "Manifold side"
Old Mar 7, 2007 | 04:52 PM
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Exclamation

There's never a shortage of "wise guys"... If the gaskets had been marked I wouldn't be asking.
Old Mar 7, 2007 | 06:01 PM
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If the original gaskets aren't messed up, then you can reuse them. I did and after being daily driven with headers for over 2 years I still don't have any leaks.
Old Mar 7, 2007 | 08:33 PM
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Originally Posted by NJ-LE
There's never a shortage of "wise guys"... If the gaskets had been marked I wouldn't be asking.
Raised side goes outward
Old Mar 8, 2007 | 11:33 AM
  #8  
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Smile

Thanks for the answer soontobeGN ... best of luck!
Old Mar 8, 2007 | 12:28 PM
  #9  
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no prob, let me know if you run into any other problems, I think I had every problem possible when I had my LT1 with long tubes
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