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5 Blades or 7

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  • Rodney#40542
    #1

    5 Blades or 7

    I have a 66 coupe 327/300 HP w factory air conditioning. My car has a 5 blade fan. The way I read the NCRS Judging Manual, I should have a 7 blade fan. Looking in Noland's book, he states in the C60 part of the 66 Section that all had 5 blades. Does anyone know what is really correct?

    I am pretty sure that mine came from the factory with the 5 blade fan.

    Thanks

    Rodney
    Tags: None
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    • Peter L.
      Extremely Frequent Poster
      • May 31, 1983
      • 1930
      #2
      Re: 5 Blades or 7

      Rodney - I'm pretty sure it did also. If it's 5 blades and 18" dia it should be the 'correct" fan blade assembly. There were two 5 blade, 18" dia fan blade assemblies used (see the '66 Corvette AIM) on sb '66 C60 Corvettes. Sounds like your Judging Manual is one of the older ones which were in err regarding sb fan blade assemblies for C60 Corvettes. This section has been revised in the latest version, Spring 2004 - Fourth Edition and describes both C60 fan blade assemblies. Also, check the DB Archives as there have been several threads on this subject. Pete
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        • Peter L.
          Extremely Frequent Poster
          • May 31, 1983
          • 1930
          #3
          Re: 5 Blades or 7

          Rodney - I'm pretty sure it did also. If it's 5 blades and 18" dia it should be the 'correct" fan blade assembly. There were two 5 blade, 18" dia fan blade assemblies used (see the '66 Corvette AIM) on sb '66 C60 Corvettes. Sounds like your Judging Manual is one of the older ones which were in err regarding sb fan blade assemblies for C60 Corvettes. This section has been revised in the latest version, Spring 2004 - Fourth Edition and describes both C60 fan blade assemblies. Also, check the DB Archives as there have been several threads on this subject. Pete
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            • Dick W.
              Former NCRS Director Region IV
              • June 30, 1985
              • 10483
              #4
              Re: 5 Blades or 7

              Have any other data that we should know about???
              Dick Whittington
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                • Dick W.
                  Former NCRS Director Region IV
                  • June 30, 1985
                  • 10483
                  #5
                  Re: 5 Blades or 7

                  Have any other data that we should know about???
                  Dick Whittington
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                    • Patrick H.
                      Beyond Control Poster
                      • December 1, 1989
                      • 11608
                      #6
                      Re: 5 Blades or 7

                      Rodney,

                      Search the Archives for my recent thread on this subject. There are correct and incorrect 5 blades for your car - see the thread.

                      Son't feel bad. I bought my Judging Guide last fall, and it was obsolete within months.

                      Patrick
                      Vice-Chairman (West), Michigan Chapter NCRS
                      71 "deer modified" coupe
                      72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
                      2008 coupe
                      Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.
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                        • Patrick H.
                          Beyond Control Poster
                          • December 1, 1989
                          • 11608
                          #7
                          Re: 5 Blades or 7

                          Rodney,

                          Search the Archives for my recent thread on this subject. There are correct and incorrect 5 blades for your car - see the thread.

                          Son't feel bad. I bought my Judging Guide last fall, and it was obsolete within months.

                          Patrick
                          Vice-Chairman (West), Michigan Chapter NCRS
                          71 "deer modified" coupe
                          72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
                          2008 coupe
                          Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.
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                            Comment

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