73 Dart Sport 360 intake manifold swap-HELP

Small Block Mopar Engine

  1. 73darrsport

    73darrsport FABO Gold Member FABO Gold Member

    Messages:
    3
    Likes Received:
    0
    Joined:
    Jul 19, 2017
    Location:
    Oregon
    Local Time:
    1:35 AM
    Trying to swap out a two barrel stock manifold with a four barrel Edelbrock performer intake. It does not seem to fir. Advice?

    52EDD0D2-1F2B-4AA3-9339-D291EA9565B5.jpeg 1ACDFDE5-2EC5-4386-8ABE-2573A9690F91.jpeg 8F964EA0-E02D-4B21-879C-71B560A49BD2.jpeg
     
  2. tonysrt

    tonysrt FABO Gold Member FABO Gold Member

    Messages:
    456
    Likes Received:
    170
    Joined:
    Dec 25, 2016
    Location:
    Northport, NY
    Local Time:
    4:35 AM
    Were heads milled? Looks like a fresh build, was 2 barrel manifold on there when motor was done, they may have milled the 2BBl manifold to make it fit.
     
  3. Cope

    Cope Fusing with fire

    Messages:
    2,446
    Likes Received:
    1838
    Joined:
    Oct 20, 2009
    Location:
    San Jose, Ca.
    Local Time:
    3:35 AM
    Are you asking about the heat cross over?

    It stays open.

    That horse shoe shaped hole is for dropping your carb nuts into..

    :)
     
    • Like Like x 3
    • Agree Agree x 3
    • yellow rose

      yellow rose Doctor of Thinkology.

      Messages:
      15,415
      Likes Received:
      12023
      Joined:
      Jun 19, 2015
      Location:
      Living on the razors edge
      Local Time:
      1:35 AM
      Pull the valve covers so you can see if it fits down on the heads. If it does, and the bolt holes line up without the gasket, measure the gasket and mill that much off the intake manifold. If the manifold sits too low with no gasket you may get lucky.
       
      • Agree Agree x 1
      • 73darrsport

        73darrsport FABO Gold Member FABO Gold Member

        Messages:
        3
        Likes Received:
        0
        Joined:
        Jul 19, 2017
        Location:
        Oregon
        Local Time:
        1:35 AM
        The stock manifold covered the entire heat cross over, is it ok that the new one only covers a portion?
         
      • 73hcode

        73hcode Well-Known Member

        Messages:
        988
        Likes Received:
        354
        Joined:
        Apr 3, 2011
        Location:
        Clinton Mississippi
        Local Time:
        3:35 AM
        It is ok I have heard those are heat crossovers or casting holes whatever they are the factory manifold covers them up but most aftermarket ones don’t. My air gap looks like yours.
         
        • Agree Agree x 1
        • 73darrsport

          73darrsport FABO Gold Member FABO Gold Member

          Messages:
          3
          Likes Received:
          0
          Joined:
          Jul 19, 2017
          Location:
          Oregon
          Local Time:
          1:35 AM
          Thanks!! Appreciate all you help!!!!!
           
        • BigBlockMopar

          BigBlockMopar BigBlockMember

          Messages:
          1,564
          Likes Received:
          516
          Joined:
          May 1, 2011
          Location:
          Netherlands
          Local Time:
          10:35 AM
          You might need to clearance the valve covers a bit to prevent interfering with the intake, or make sure you use the thick valve cover gaskets.

          You'll also most likely have to mill down the choke casting, as it could be contacting the carb's throttle mechanism.
          Trial fit the carb as well before torquing down the intake.
           
        • Cope

          Cope Fusing with fire

          Messages:
          2,446
          Likes Received:
          1838
          Joined:
          Oct 20, 2009
          Location:
          San Jose, Ca.
          Local Time:
          3:35 AM
          Scribe the head now, pull intake, tape off and paint. Then pull the covers and install the intake.

          That bare steel will rust and look crappy.
           
        • RustyRatRod

          RustyRatRod 30 Degrees Outta Whack FABO Gold Member

          Messages:
          47,999
          Likes Received:
          13377
          Joined:
          Jun 7, 2010
          Location:
          Georgia
          Local Time:
          4:35 AM
          No, it did not. It probably had tons of dirt covering it up. None of the intakes cover that area up. It is for heat relief at the exhaust crossover. Bolt down the new intake and have at it.
           
          • Like Like x 1
          • Agree Agree x 1
          • kursplat

            kursplat FABO Gold Member FABO Gold Member

            Messages:
            1,040
            Likes Received:
            268
            Joined:
            Aug 24, 2010
            Location:
            so cal
            Local Time:
            1:35 AM
            only if your some place you don't have a spare :BangHead:

            also decide how your going to tackle the end gaskets...better yet, ask everyone what the "correct" way to do it is :poke: :rolleyes:
             
            • Agree Agree x 2
            • Cope

              Cope Fusing with fire

              Messages:
              2,446
              Likes Received:
              1838
              Joined:
              Oct 20, 2009
              Location:
              San Jose, Ca.
              Local Time:
              3:35 AM
              We all know 2 or 3 nuts are fine, that little bit of extra air just makes it burn hot and FAST!!
               
            • oldkimmer

              oldkimmer Well-Known Member

              Messages:
              9,751
              Likes Received:
              975
              Joined:
              Nov 11, 2006
              Location:
              Kindersley, Saskatchewan,
              Local Time:
              3:35 AM
              U need to remove the valve covers. Is there a hole in the Center of the front and rear rails? If not u will have to pull the pins out, Most ppl recommend not using the end rail gaskets and using a thick bead of silicone or The Right Stuff. Kim
               
            • teringer

              teringer ase master hall of fame

              Messages:
              720
              Likes Received:
              118
              Joined:
              Feb 22, 2011
              Location:
              kenly nc
              Local Time:
              3:35 AM
              after you remove the valve covers and install the intake your valve covers could still hit the intake runners causing oil leaks but they make a thick vc gasket that will help pick up the cover and give more clearance its about 3/8 '' thick.
               
            1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
              By continuing to use this site, you are consenting to our use of cookies.