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Old Jan 7, 2016 | 11:36 PM
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Default Header quetions

So I think I have a leaking header gasket. I want to order a remflex gasket. Problem I'm running into is I don't know what size headers I have on the car( previous owner installed them) they are coated lg long tubes. The gaskets I'm looking at at say 1 3/4. http://m.summitracing.com/parts/rfl-2066?seid=srese1&gclid=Cj0KEQiAtri0BRDLo aCF95e7o_sBEiQA_pgRQ19HUlR2wX-G0YJXutpGgEfsGEkyB6AKgGrDXFP8tHcaAhPF8P8 HAQ . Is there any way to check which size headers I have on car? Or will these work on any on both the 3/4 and 7/8.

Thanks!
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Old Jan 8, 2016 | 08:55 AM
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Originally Posted by Ajsegal
So I think I have a leaking header gasket. I want to order a remflex gasket. Problem I'm running into is I don't know what size headers I have on the car( previous owner installed them) they are coated lg long tubes. The gaskets I'm looking at at say 1 3/4. http://m.summitracing.com/parts/rfl-...tHcaAhPF8P8HAQ . Is there any way to check which size headers I have on car? Or will these work on any on both the 3/4 and 7/8.

Thanks!

Not tube Dia, but flange that matters. With Kooks headers I used OEM gaskets and stage 8 bolts. (French locks) of sorts

G.M. gaskets much better Quality than Kooks gaskets.

Have to look hard at pic, but they are there .........

Last edited by HK770; Jan 11, 2016 at 04:35 PM.
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Old Jan 8, 2016 | 10:56 AM
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Same type of question over on the Z06 sub-forum.

Use AC Delco p/n 12617944 round port gaskets. Excellent gasket and fits all the LS engines.
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Old Jan 10, 2016 | 09:28 PM
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Just fyi I had remflex gaskets on with my obx headers and they were a pain to clean up after when I needed to reinstall them...graphite everywhere. You'd be better off taking the header off and getting it flattened at a machine shop and using GM gaskets in my opinion.
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