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Tech Question
Frank Ohlhorst, Medford, NY, 79 Dodge Magnum 440
The Jury seems to still be out on this one - When installing an aluminum intake on a big block - what is the best way to seal it!
- Some say the factory Valley pan is fine, just add some sealer to the corners - others put sealer around each port also - some glue paper gaskets to valley pan intake holes - and some even trim the valley pan down (removing the intake portion) and use paper gaskets
When ever I ask this question on a forum - a fight breaks out - so I am leaving it to you for the correct answer - What is the best way to Install an Intake on a big block?
Use the stock valley pan with the thin paper gaskets contact-cemented to both sides. Then a small daub of RTV in the corners. No sealer between the paper and the manifold or heads - it must be able to move. Even a thin coat of Vaseline isn't a bad idea.
Rick
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