C3 1981 intake end gasket or silicone?

[tim anderson]

If I remember the blur of my wilder years. Didn't I see where RTV replaced end gaskets of chevy V8. And maybe even valve cover gaskets on some models?

As factory assm. would my C3 1981 have RTV on either?

Thanks for the help.

[John H.]

Re: C3 1981 intake end gasket or silicone?

Tim -

I don't know offhand what the 81's used, but I always pitch the end seals that come with any gasket set and use Permatex "Ultra-Copper" RTV; judges like to see the factory end seals, but for a point or two, I'd rather have no oil leaks.

[Joe L.]

Re: C3 1981 intake end gasket or silicone?

Tim-----

1981 Chevrolet V-8 engines used Silicone RTV for both the intake manifold end seals as well as in place of gaskets for the valve covers. The sealant used was a black RTV, a duplicate of which is available either from GM in SERVICE or from auto parts stores under the Permatex brand. The original GM sealant was manufactured by either Permatex or General Electric.

[tim anderson]

Re: C3 1981 intake end gasket or silicone?

John and joe , do you all just want to move in to my house? You guys have all the answers for me. It's a big house! Small garage.
Thanks for the info.