Intake manifold install

Discussion in 'Small Block Mopar Engine' started by skep419, Sep 8, 2018.

What method do you use

  1. Use the supplied cork end rail gaskets

    6 vote(s)
    13.6%
  2. Thick bead of rtv for end rails

    38 vote(s)
    86.4%
  3. Other

    0 vote(s)
    0.0%
  1. skep419

    skep419 It's only money, you can always make more

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    • gdrill

      gdrill OK, now what??? Staff Member FABO Gold Member

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      I can't watch that due to net speed. But I say, use the gasket with a smear of silicone along the width and a dab at each end. Works for me.
       
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      • 67Dart273

        67Dart273 Well-Known Member

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        No cork, no end seals. RTV or other. All I've ever used is RTV
         
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        • iScamp

          iScamp Well-Known Member

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          A long time ago, I used a Fel-Pro gasket set for my SBM. The set came with neoprene end gaskets. Just set in place and put the manifold down.
          Recently, got a Fel-Pro set with the cork. The cork was so thick that the bolt holes would not line up. Not even close.
          Laid a bead of RTV (1/4" in diameter) and let set until tack free. A little bit of fresh sealant at the end and put down the manifold. No leaks.
           
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          • mderoy340

            mderoy340 Well-Known Member

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            • famous bob

              famous bob mopar misfit

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              Same here. I tried the self glued end gaskets on a sbc one time just for the heck of it, it leaked, pulled the intake and used black RTV silicone, leak gone , have used it ever since.
               
            • gliderider06

              gliderider06 Well-Known Member

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              I have never used the cork gasgets on the China rails. Only ultra rtv silicone.
               
            • j par

              j par Well-hung Member

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              I've never used the cork. Just a double stack of "the right stuff" (rtv).
               
            • skep419

              skep419 It's only money, you can always make more

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              I’ve only used right stuff but it sucks to get off. Was hoping there was a better way. I guess not leaking trumps easy removal.
               
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              • j par

                j par Well-hung Member

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                As far as getting the manifold back off I always run an exacto knife through that double bead in the front and back.
                 
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                • nm9stheham

                  nm9stheham Well-Known Member

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                  We had success with the cork end gaskets with an RPM Performer intake. But nothing had been machined on the (Edelbrock RPM) heads and the block had just been lightly decked. It was a pretty tight squeeze.
                   
                • pishta

                  pishta I know I'm right....

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                  Yeah baby.....! The corks are hard to compress while the foam ones are pretty good in my opinion. Remember to remove any dowels in the block before you crank down an intake. I cracked a 273/4 intake once doing this.

                  coulo.jpg
                   
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                  • stroked340

                    stroked340 Well-Known Member

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                    Those 2 are a couple of f-ing clowns!!!
                     
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                    • j par

                      j par Well-hung Member

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                      Remember there's always three fingers pointing back at you? What are you putting down now?
                       
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                      • 1Fast340

                        1Fast340 Well-Known Member

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                        Rtv everytime on everything,it just works everytime,the corkgaskets are hit and miss depending on how the tolerances stack up.
                         
                      • pishta

                        pishta I know I'm right....

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                        If you take the tips of the bolts and put a 45 chamfer on the ends with a grinder, it makes getting it lined up easier. Itll sort of weasel in there and catch a thread to self align the intake. I like these guys, they blow myths like X vs Y pipes and gasket matching without having to sell the stuff like other personalities.
                         
                      • charles mill

                        charles mill Wildman68 FABO Gold Member

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                      • charles mill

                        charles mill Wildman68 FABO Gold Member

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                        yes good. but what did they do and seal with back then. need answer. what ever it was it sealed. correct?
                         
                      • skep419

                        skep419 It's only money, you can always make more

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                        It was unmolested factory parts. That’s like expecting dolly partons first bra to fit again.
                         
                      • charles mill

                        charles mill Wildman68 FABO Gold Member

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                        so your blessed as she. what u after? on install. $ or help..
                         
                      • charles mill

                        charles mill Wildman68 FABO Gold Member

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                        one good you r saying unmolested. copy what u r taking apart if u can no help needed mopar ? help
                         
                      • iScamp

                        iScamp Well-Known Member

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                        Took the intake off an original 1970 318 engine. (40 years ago.) The end seals were not leaking. I took it apart to look at the cam/lifters.
                        The end seals were a soft material, that was fairly stiff but, I could cut it easily. I'm guessing it was neoprene closed cell foam.

                        Is that what you are asking?

                        I doubt you can get that style gasket anymore. Could buy some neoprene strips and make your own.