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Old 12-23-2020, 10:09 PM
Vetteman61 Vetteman61 is offline
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Default '71 Exhaust Flange Gasket

I have a '71 455 in a Station Wagon. Stock exhaust manifolds.

Do these require a gasket? If so, what would you call this part to make my searches turn up more hits? I've always just called them donut gaskets or exhaust flange gaskets.

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Old 12-24-2020, 09:40 AM
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thepontiacman thepontiacman is online now
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They don't have donut gaskets where exhaust pipe meets manifold.

Factory gasket to head

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Old 12-24-2020, 12:39 PM
tjs72lemans tjs72lemans is offline
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When I got introduced to Pontiac restoration a couple years ago, I was astonished to see the exhaust pipe to manifold had no donut gasket also. It seals metal to metal.

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Old 12-24-2020, 01:39 PM
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Ben M. Ben M. is offline
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Quote:
Originally Posted by tjs72lemans View Post
It seals metal to metal.
Yup, it's a compression style fitting so no need for a gasket. Pretty cool if you ask me.

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Old 12-24-2020, 02:37 PM
Vetteman61 Vetteman61 is offline
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Thanks guys. Ben, I had posted this question, and then was on the wagon forum to message you a question so thought I'd ask you there also.

As most things do, this has snowballed into a larger project than I'd hoped.

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