Need measurement for 1972 BB Fan Clutch - NCRS Discussion Boards

Need measurement for 1972 BB Fan Clutch

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  • Melissa N.
    Frequent User
    • March 1, 2003
    • 49
    #1

    Need measurement for 1972 BB Fan Clutch

    Can anyone provide the measurement of a 1972 Corvette BB fan clutch from the surface of the flange (that mounts to the water pump) to the surface of the clutch?
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    • Owen L.
      Very Frequent User
      • September 30, 1991
      • 875
      #2
      I can measure mine. I know you said surface of the clutch so I want to make sure I'm understanding correctly. You need the bottom arrow measure, yes?
      Screenshot 2025-07-31 at 8.18.16 PM.png
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        • Melissa N.
          Frequent User
          • March 1, 2003
          • 49
          #3
          Fan Clutch Dimension.jpg Owen,
          Thank you for responding.

          I tried to attach a picture of the dimension I needed, but I did buy one from America's Finest Corvettes which is supposed to be correct.
          You do not have permission to view this gallery.
          This gallery has 1 photos.
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            • Owen L.
              Very Frequent User
              • September 30, 1991
              • 875
              #4
              Mine is mounted on my engine, so best measure I could come up with is right around 2.75" for the overall width.
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                • Melissa N.
                  Frequent User
                  • March 1, 2003
                  • 49
                  #5
                  Great, thank you! Will compare your measurement to the one I bought.
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