Thermostat housing

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  • powaw
    S2Forum Fanatic
    • Jul 2009
    • 80
    • Country: United States

    #1

    Thermostat housing

    I have run into a snag on my engine swap. Does anyone know if there was a steel version of the thermostat housing that would bolt onto an AAN? I need to change the direction that the neck leaves the block.
    currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
    see the AAN/944 swap at Nina's 20VT
  • UrS4boy
    S2Forum Obsessed
    • Feb 2006
    • 11859
    • Country: Canada

    #2
    Not sure which direction you are needing to go but I think the ABY (very similar to the AAN except with the reverse intake manifold) has a different thermostat housing than the AAN.
    RS2'd 93 UrS4 5 spd sedan
    94 UrS4 V8 6 spd manual avant

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    • mcandmar
      S2Forum Zealot
      • Apr 2004
      • 5118
      • Country: Ireland

      #3
      From memory the AAN item is plastic and points towards the back of the car, 7A/3B/ABY item is alloy and points towards the left hand head light.
      91CQ20v - Gone to a new home
      93UR-S4 - The Magic Carpet
      94S2Bus - The Emerald Express

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      • Jamo
        Retired OG Mod
        • Mar 2004
        • 21750
        • Country: United Kingdom

        #4
        Would you have to change the water rail as well though?

        Comment

        • terrybullwon
          S2Forum Zealot
          • Mar 2006
          • 8782
          • Country: England

          #5
          Originally posted by mcandmar
          From memory the AAN item is plastic and points towards the back of the car, 7A/3B/ABY item is alloy and points towards the left hand head light.
          Yep i saw one on a ANN last week plastic for sure the ABY/3B/ADU can be turned 180 degs but its easier just to cut and weld!

          As Jamo says your going to need to think about both

          Chef

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          • powaw
            S2Forum Fanatic
            • Jul 2009
            • 80
            • Country: United States

            #6
            So then you are saying that the 7a part is made from metal? If that is the case that's just what I need. On my swap I need that water port to travel directly over the water pump mounting location so that it will connect to the lower passenger side of the radiator.
            currently: 1987 944 NA 5spd, 250 lb hyper coils, 27 mm t bars, Koni, 968 m030 bars, full delrin, Audi I5 20VT, VEMS, Tilton, EFI Express, Seimens, Race Technologies
            see the AAN/944 swap at Nina's 20VT

            Comment

            • Error404
              Super Moderator
              • Mar 2007
              • 19789
              • Country: United Kingdom

              #7
              yup. 7A part will do you fine and its alloy
              Panthero Coupé quattro 20vt
              Indigo ABY coupé
              Imola B6 S4 Avant

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