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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Sealing exhaust manifolds--what should I use?

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Sealing exhaust manifolds--what should I use? Empty Sealing exhaust manifolds--what should I use?

Post by dhw3971 Fri Dec 05, 2014 4:27 pm

When re-installing my exhaust manifolds should I use the flat metal gaskets or can I use "gasket in a tube"?  I already have some Permatex Ultra Copper sealant at home and according to Permatex it can be used to make exhaust manifold gaskets.  info link--click here
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Post by Joe73 Fri Dec 05, 2014 5:12 pm

Id go with metal ones like stock.
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Post by dynchel Fri Dec 05, 2014 7:04 pm

Joe73 wrote:Id go with metal ones like stock.
X2
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Post by fishhead Wed Dec 10, 2014 10:14 pm

I always had good luck with the metal ones.I don't trust rubber goo except for a quick fix on stubborn collector gasket leaks.

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Post by Dinomyte Wed Dec 10, 2014 11:00 pm

dynchel wrote:
Joe73 wrote:Id go with metal ones like stock.
X2

Me too, and they'll be so much easier to remove if you need to.
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Post by pila Thu Dec 11, 2014 9:53 pm

Originally there were no gaskets used, just metal to metal...still works for me.

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Post by dhw3971 Thu Dec 18, 2014 5:03 pm

I took the collective advice and put metal gaskets on. I used a bit of high-temp sealant just to get them to stick to the cylinder head long enough for me to bolt on the exhaust manifolds..PITA fighting gravity in that location.
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Post by fishhead Fri Dec 19, 2014 3:11 am

Yep,don't want to do that job twice.

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Post by brownbomber77 Mon Dec 29, 2014 2:33 am

I like using the copper gasket stuff made by permatex. Comes in a spray can. has always worked with everything I have used it on

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