Blown Exhaust Manifold Gasket

[money pit]

I have a stock 360 engine with stock exhaust manifolds that keeps blowing the exhaust manifold gaskets. It's blowing the gaskets on the driver side only. First it was #7, replaced the gasket, a few months later, it blew # 1. Everything is tight and I have the conical washers installed. I did buy these manifolds on craigs list. Is there a preferred brand of gasket? Thanks. Happy New Year!!!!

 

[Chryco Psycho]

use a thin layer of ultra copper silicone & install the manifold directly onto the head , the factory never used gaskets

 

[money pit]

use a thin layer of ultra copper silicone & install the manifold directly onto the head , the factory never used gaskets

Thanks to you and this forum, I would not have known this. Thanks

 

[hsb shadow]

I found over the years that these old manifolds get warped and that way you sometimes have to do is take him and get them planed down a little bit. I usually take mine to a local muffler shop and they have a modified belt sander and they plane all of my manifolds and I also use the sealants as mentioned above. Good luck

 

[money pit]

I found over the years that these old manifolds get warped and that way you sometimes have to do is take him and get them planed down a little bit. I usually take mine to a local muffler shop and they have a modified belt sander and they plane all of my manifolds and I also use the sealants as mentioned above. Good luck

I'm going to pull them and run a straight edge over the manifolds. Thanks.

 

[money pit]

Thanks to you and this forum, I would not have known this. Thanks

I used the ultra copper silicon, it worked like a charm. Thanks

 

[Chryco Psycho]

Great !