RTV

by spongebob on Jun 12 2017, 11:06 PM

What is the best silicon (RTV) to use on an intake manifold gasket job?

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20 Replies
  • By ketteler88
    I have never had The Right Stuff fail me. Best stuff out there.
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  • By vicioussixx
    The Right Stuff is my personal choice........
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  • By service guy
    Right stuff does it all.
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  • By aaron scholten
    u use permatex
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  • By rmac1989
    THE RIGHT STUFF I AGREE AS WELL!
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  • By cmguru17
    right stuff ultra grey then ultra black, both very good sealers
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  • By jeffreyd1
    Usually use the Right Stuff as a great all around sealant. 
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  • By wayner2003
    Ultra Black!
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  • By 1969mach1
    Right Stuff by permatex is the best If you are installing an aluminum intake make sure to use Fel Pro print-o-seal intake gaskets install them dry only use the sealer in the corners or you may want to throw the end seals away and use nice bead of right stuff in place of the seals this will allow the intake to sit down a little farther in case the heads were shaved or the block decked . 
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  • By fordtek1
    first choice would be ultra grey, then ultra black
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