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5.7 GM Exhaust manifolds Gasket or no gasket? |
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superchief 
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Joined: June-11-2012 Location: United States Status: Offline Points: 7 |
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 Topic: 5.7 GM Exhaust manifolds Gasket or no gasket?Posted: August-23-2014 at 7:20pm |
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I'm assembling a 5.7 Vortec long block and thinking the original manifolds were bolted to the head without gaskets just a bead of silicone. I'm not worried about the risers they are together and don't leak..
I've searched alot of threads, in different forums, unfortunately most of threads are 5 pages deep and full of people answering every question but the one I need an answer to. I bought some high temp RTV Im thinking that is what I need. |
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backfoot100
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Joined: January-03-2007 Location: United States Status: Offline Points: 1897 |
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Posted: August-23-2014 at 9:56pm |
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You should definitely have a marine gasket on that. It goes on dry. Don't use that RTV crap.
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When people run down to the lake to see what's making that noise, you've succeeded.
Eddie |
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Posted: August-23-2014 at 10:44pm |
I hate silicone!! 
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GlassSeeker
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Joined: November-26-2008 Location: Elk Grove, CA. Status: Offline Points: 2421 |
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Posted: August-24-2014 at 2:40am |
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Gaskets? Yes.
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This is the life
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backfoot100 wrote: