Radiator clearance

Big Block A body Tech

  1. paulclark

    paulclark Early A fanatic FABO Gold Member

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    how much room.do I need to leave between radiator and fan blades? I'd like to run a fan clutch but not sure there's room.

    previous owner installed a 383 with elephant ears, and ran an electric fan, but id like to return it back to period stock style fan. This is in a 67 Dart.

    thanks!
     
  2. fklskv

    fklskv Well-Known Member

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    When you order a fan clutch like from Rockauto, a list will pop up that “fit your car”. They are not all the same. Clicking on the info tab you will find the spec, “distance from flange to fan clutch” then find the on you would need.

    Someone will chime in with the correct spec I’m sure. I run mine 1” away.
     
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    • Steven190

      Steven190 FABO Gold Member FABO Gold Member

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      I should be about 3/4" away from the core, and 3/4" to 1" around the shroud
       
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      • famous bob

        famous bob mopar misfit FABO Gold Member

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        Tighter if ur engine doesn`t move around .
         
      • paulclark

        paulclark Early A fanatic FABO Gold Member

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        thanks!
         
      • paulclark

        paulclark Early A fanatic FABO Gold Member

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        Awesome info. I picked up a fan and clutch from a 67 Polara, going to find out today how close it comes to fitting. It's way more compact front to back than I thought it would be.

        Kudos to the FABO racers' forum where I found lots of great input from people running electrics, fans, and fan clutches, and how that worked for them. This is my first big block A-body, so I'm discovering bit by bit how the builder fit the motor in there. Makes it look easy when it's in place, then I realize what had to be solved during that build - like radiator clearance which I hadn't thought of before. All this is great learning and prototype for doing this with another A-body later on. I'm glad I'm learning on a car already built.

        Restoration thread here:
        67 Dart GT Racecar Rescue
         
      • AndyF

        AndyF Well-Known Member

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        I used a Cordoba radiator and shroud along with a clutch fan and a big 7 blade OEM fan on my '72 Duster.
        DSC_3678 (Large).JPG
         
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        • beanhead

          beanhead Well-Known Member

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          Is that shroud off the cordoba as well?
           
        • paulclark

          paulclark Early A fanatic FABO Gold Member

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          Very nice!
           
        • mopardude318

          mopardude318 Well-Known Member

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          There is a low profile Hayden HD fan clutch part number 2947.
           
        • paulclark

          paulclark Early A fanatic FABO Gold Member

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          That would help, this is a tight fit. Will look it up.
           
        • Steven190

          Steven190 FABO Gold Member FABO Gold Member

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          I used the Hayden #2947. it is tight and a pain to mount, but fit fits nicely

          Put radiator shroud over water pump towards engine, enough to get access to bolts
          Put a piece of cardboard against radiator to protect it.
          Install fan and clutch
          then install shroud
           
          Last edited: Sep 16, 2019
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