RE: Exhaust Manifold gasket/no gasket ??

I would have the exhaust manifold surfaced – most any auto parts with a machine shop in the back will surface manifolds at a very reasonable cost. And would lean towards a gasket myself, with copper spray if anything.

Have you seen the Permatex product selector – it leads you to either the copper spray or copper RTV if you have a gasket – the copper RTV with no gasket….. Have used both products, although not a fan of RTV’s – the copper RTV worked well on a thermostat housing with no gasket, following the instructions.

http://www.permatex.com/product-selector

http://www.permatex.com/product-selector?view=productcategory&id=171

From: 1962to1965mopars@xxxxxxxxxxxxxxxx [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] On Behalf Of dennis.1963ply
Sent: Saturday, April 18, 2015 12:07 PM
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Subject: Exhaust Manifold gasket/no gasket ??

Sorry, this is not 62 to 65 Mopar but the question I am asking is appropriate for 62 to 65 Mopar engines also.

I am actually working on an RV with a 360 that has an exhaust leak and the manifold is installed with a gasket.

My understanding is that normally a gasket is not used however at some point in time the engine was rebuild or repaired and a gasket was installed probably just because it was in the gasket kit.

If I don't use a gasket should I use something like a very small amount of high temperature RTV, Copper Coat or just clean it well and install it bare?

Any suggestions will be appreciated.

Dennis C.

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