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Old 10-03-2007, 11:07 PM
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Rwillia4 Rwillia4 is offline
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Join Date: Aug 2003
Location: San Diego, CA
Cobra Make, Engine: BDR #455, KC427W, TWM-FI
Posts: 727
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I had to pull the intake of my new build to install the engine. I purchased felpo gasket and they were WAY thinner that what I took off. So I called the builder. I was told if you haven't had your block planed then you need the thick gasket which is about 1/4" thick (two felpro's didn't even match the thickness).

To install the gaskets with good success I was told to use weather strip black sealant (from your local automotive store) which is much thinner than RTV or silicone. Put the sealant around the ports on the bottom sides of the gaskets, align them onto the heads visually. Push into place, the sealant will have enough tack to hold them. Let it dry for a few hours (read: go get lunch and let it dry), this will allow you to be able to put the intake on without having the gaskets move. Put the sealant on the top of the gaskets, install the intake. Let dry overnight and startup in the morning. No it is not a quick process but you only have to do it once (other then re-torqueing the bolts).
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