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Header Gasket Suggestions?

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Old Jul 29, 2004 | 12:07 PM
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Default Header Gasket Suggestions?
My old header gaskets for my flowtechs are now pretty much useless... So does anyone have any suggestions for some good gaskets that wont leak?
Thanks alot.
Bryan
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Old Jul 29, 2004 | 12:18 PM
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Originally Posted by 98Z28MrO
My old header gaskets for my flowtechs are now pretty much useless... So does anyone have any suggestions for some good gaskets that wont leak?
Thanks alot.
Bryan
Never use the gaskets that come with your headers. Always buy a set of OE GM manifold gaskets. They work perfectly, and they are metal so they won't blow out. Some people re-use their stockers, but I didn't think it would be a good idea for me because I would have been pissed if I had to pull the headers back off to put new gaskets on.
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Old Jul 29, 2004 | 03:31 PM
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I'm using my stock set. This is the 4th differant set of headers I've had them on and they're still holding.
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Old Jul 29, 2004 | 03:33 PM
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I just bought a new set of OEM style metal gaskets from Napa... work just fine, no leaks.
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Old Jul 29, 2004 | 04:56 PM
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Originally Posted by Tranzor_Z28
I just bought a new set of OEM style metal gaskets from Napa... work just fine, no leaks.
I had no idea Napa made a set...interesting. But they probably weren't any cheaper.
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Old Jul 29, 2004 | 05:01 PM
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I can't remember how much they were, honestly... but wasn't too expensive. They just happened to be more convenient than a dealership for me.
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Old Jul 29, 2004 | 05:03 PM
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im in the same boat, my flowtech headers leak like no other. i have to put it back in the shop on monday.
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Old Nov 27, 2004 | 06:40 AM
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I'm changing headers and going with new OEM GM metal gaskets. My first set of headers, I used the paper gaskets which shipped with my JBA headers and they worked fine, but, if you don't re-torque them after they heat up, you'll stand a good chance of blowing a chunk out of the gasket. Go with the metal gaskets and torque the bolts down evenly in the correct sequence. Even with the metal gaskets, it wouldn't hurt to re-torque them after you've driven for a couple of hundred miles ... simply because heat effects any material ... irregardless of how temperature tolerant the material might be.
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Old Nov 27, 2004 | 10:11 AM
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I'm on my second set of headers...I've used OEM metal gaskets both times with no problems...
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Old Nov 27, 2004 | 10:18 AM
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... and no need for RTV sealer.
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Old Nov 27, 2004 | 04:18 PM
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Any one know the part number for the OEM GM metal gaskets. What is the best place to order them from?

Thanks
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Old Nov 27, 2004 | 06:13 PM
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I just went to my Pontiac dealership today and ordered the gaskets. They were $16.63 each and a bag of 10 OEM header bolts was $11.90. Total with tax was $48.33 for both gaskets and the 10 bolts. Straight off the Parts Invoice, the Gaskets are part# 12558573 and the bolts were part# 11515758.
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