C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Exhaust Gasket for headers

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Old Jan 28, 2017 | 08:20 PM
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Eduardo L98 1991's Avatar
Eduardo L98 1991
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Default Exhaust Gasket for headers

I recently installed headers but gaskets blows
L98 aluminum heads square ports

whats is the best option ?, copper, xx carbon,graphite, stainless

Last edited by Eduardo L98 1991; Jan 29, 2017 at 02:19 PM.
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Old Jan 29, 2017 | 07:29 PM
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Percy's Seal-4-Good gaskets are highly regarded, they're made out of a thick dead soft aluminum that compresses to conform to the flange and head surface. With square ports, maybe the 66012 part number would be what you want.

https://www.summitracing.com/oh/part...6012/overview/
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Old Jan 29, 2017 | 08:53 PM
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Originally Posted by Eduardo L98 1991
I recently installed headers but gaskets blows
L98 aluminum heads square ports

whats is the best option ?, copper, xx carbon,graphite, stainless

Use a quality aluminum gasket, I've had nothing but problems with copper gaskets on aluminum heads.
I use remflex gaskets and only have positive things to say plus they have a lifetime warranty.
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