End seals: different size gap
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Elder User
Joined: Sep 2004
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From: Grain Valley Mo.
End seals: different size gap
I set the PI on the 390 with the Mr.G, gaskets for a dry run to check the end seal gap, to see if I should use the cork seals or Silicone. The front fits just a little tight but the back is loose, maybe .020 no way the man. will make contact. I have a set of Felpro end seals that are a little thicker but still don't touch. Should I use the cork and fill the void with silicone?
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Elder User
Joined: Sep 2004
Posts: 863
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From: Grain Valley Mo.
I jumped the gun a little
I put the side gaskets on, put the bolts in and snuged them down and it got better. I think the tabs on the head gasket were holding the intake up. Now a Mr. Gasket cork fits snug in front and a Fel-P cork fits snug in back. I don't like the fit on either one, that little tab that hooks to the side gasket, might just wack em off and use silicone. The Fel-P cork has a adhesive already on the back, how good does that work?
Elder User
Joined: Feb 2005
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I just put my intake on and I used the cork seals on the end. I know several people here have said to just use silicone. I used silicone to glue the cork in place and I put a good bead at the corner where the cork meets the side gaskets. I don't know what's best...I've installed intakes like this before without any problems but I'm always crossing my fingers and hoping it doesn't leak...lol.
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Elder User
Joined: Sep 2004
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From: Grain Valley Mo.
'stang....these FE's are something else aren't they. Like you I've put other motors together without all these odd problems. I too used the cork seals but I cut that tang off on the ends. The silicone oozed out and looks great. I don't see how it could leak. Did you slip the dizzy in before you tighened the manifold bolts? If not you better check and make sure it will slip in, I had that problem last time.
Elder User
Joined: Feb 2005
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hmmmm....I haven't installed the dizzy yet. Actually I ordered a reman dizzy that I'm to pick up today. Guess I'll find out tonight if it will fit. Hopefully it will...I've already installed the intake twice because I left out the splash shield the first time...the way my luck is I'm probably headed for yet a third time now...lol.
Senior User
Joined: Sep 2003
Posts: 131
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silicone
I used a fat bead front and read of "The Right Stuff", no leaks so far. You must make sure to intstall the intake in a jiffy, cause is the silicone will dry and make a light shell and then not stick to the intake. I learned the hard way. I like to be 100% ready to bolt the intake down, quickly spread the 2 fat beads on the block, then smear a thin coat on the intake so the fat beads have somthing better to stick to. Worked for me
Last edited by fling; Jun 15, 2005 at 10:33 PM.
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Senior User
Joined: Nov 2002
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From: Clayton CA
I can second the "Right Stuff" recommendation; I've yet to find it's equal. Once it sets nothing seems to take it off including acetone and the "gasket remover" you can buy at the parts store. So, as a word of caution, be careful were you put it. 
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