C1 PVC valve help - NCRS Discussion Boards

C1 PVC valve help

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  • John H.
    Expired
    • December 1, 1999
    • 97

    C1 PVC valve help

    Can someone cross-reference the GM P/N 5649561 PVC valve for a 1962 Corvette for me into a current brand and part number? I got the GM part number out of the 1962 AIM. TIA, John.
  • Dennis C.
    NCRS Past Judging Chairman
    • January 1, 1984
    • 2409

    #2
    Re: C1 PVC valve help

    John - This will be of no help. I have 4 1962 cars, all fitted with the CA PCV option. You are not going to find the correct PCV valve at Auto Zone, NAPA or anything like it. The valve is a machined item, you can take it apart and clean it and probably use it forever. I'd recommend a good swap meet or an ad in the NCRS Driveline. Best, Dennis P.S. If you just want a valve that will function, and originality is of no concern, there are probably a multitude of valves out there that will get the job done.

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    • Joe L.
      Beyond Control Poster
      • February 1, 1988
      • 43193

      #3
      Re: C1 PVC valve help

      John------

      The current PCV valve for your application is a GM #6421934 otherwise known as AC-Delco CV 590C. This valve will function perfectly but it is NOT configured exactly like the original valve. It is a "sealed" type valve and cannot be dis-assembled for servicing, although it can be easily cleaned and reused without disassembly as can most PCV valves. As Dennis mentioned, the original valve used threaded-together ends and could be dis-assembled for servicing.

      The original valve, in exact original configuration, is EXTREMELY difficult to locate.
      In Appreciation of John Hinckley

      Comment

      • John H.
        Expired
        • December 1, 1999
        • 97

        #4
        Re: C1 PVC valve help

        Thank you gentlemen. I bought a functional replacement from my local NAPA store.
        John.

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