I Can't Find or Know What To Call This... - NCRS Discussion Boards

I Can't Find or Know What To Call This...

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  • Randy Adams
    #1

    I Can't Find or Know What To Call This...

    I have a '64 327/300 w/Carter AFB. I'm looking for a PCV valve. The shop manual calls it a "fixed metered orfice". The drawing of it looks like a block with a hose fitting on it. I have a pvc valve on mine but that can't be correct. My local GM dealer said the part #6421934 was for '63-'64 and is no longer available and has no superseeding number. I find no such animal anywhere I look. Any help would be greatly appreciated.
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    • Timothy B.
      Extremely Frequent Poster
      • April 30, 1983
      • 5177
      #2
      Re: I Can't Find or Know What To Call This...

      Randy,

      Try Paragon for the metered orifice as I believe this part took the place of the PCV valve in 1964 and 65. The 1963 vette had a PVC valve and is a different configuration than the 64 and 65. If you have a Paragon catalog there might be a picture of what you are looking for. Tim
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        • David Z.
          Very Frequent User
          • April 1, 2002
          • 181
          #3
          Re: I Can't Find or Know What To Call This...

          Randy

          Paragon has it: Part #1061
          http://www.corvette-paragon.com/cata...7-BE4677502CDA

          Hose runs from the oil filler tube to the fitting at the rear of the carb.

          Dave Z
          Dave Zuberer
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            • Randy Adams
              #4
              Re: I Can't Find or Know What To Call This...

              Thanks Tim, Paragon has it. (Vacuum Restrictor Elbow)
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                • Randy Adams
                  #5
                  Re: I Can't Find or Know What To Call This...

                  Thanks Dave, it all comes together at the same time.
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                    • Mark H.
                      Very Frequent User
                      • July 31, 1998
                      • 384
                      #6
                      Re: I Can't Find or Know What To Call This...

                      Note that the elbowed metered orifice fitting does not screw directly into the back of the carb. There is a fitting in between them, essentially a spacer, that moves the elbow off the carb enough to permit the hose to attach w/o interference. Paragon has the spacer as well, or you can make one with a brass nipple and coupling (cut the nipple down a bit so it's not too long if you have to).
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