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67 300 hp acceptable dates

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  • David G.
    Frequent User
    • November 30, 2002
    • 99

    67 300 hp acceptable dates

    Is it correct that Jan 67 base 300hp intake 3872783 could be dated 6 or 7 mths prior to build date? This seems too long but heard these were batched and not uncommon for long lead time. Have 3rd edition Judge Guide but no reference to acceptable lead time on intakes. Thanks in advance
  • Gerard F.
    Extremely Frequent Poster
    • June 30, 2004
    • 3803

    #2
    Re: 67 300 hp acceptable dates

    David,

    Take a look at the new 5th addition 67 Judging Guide, page 120.

    The note under the intake manifold chart for the 3872783 intake manifold says:

    "Note: maybe dated as early as June, 1966 due to a banking program at the Saginaw Foundry"

    I have a late June 67/300 and all of my numbers are in June 67, except for the 3872783 intake manifold which was dated in 1966.

    You can thank John Hinckley for resolving this issue with the new manual.
    Jerry Fuccillo
    1967 327/300 Convertible since 1968

    Comment

    • David G.
      Frequent User
      • November 30, 2002
      • 99

      #3
      Re: 67 300 hp acceptable dates

      Thanks Jerry. I will have to order new addition.

      Comment

      • Timothy B.
        Extremely Frequent Poster
        • April 30, 1983
        • 5178

        #4
        Re: 67 300 hp acceptable dates

        David,

        I have a early 67 300hp car built September 23, 1966 and my menory tells me the intake manifold is dated sometime in April 66.

        Comment

        • William C.
          NCRS Past President
          • May 31, 1975
          • 6037

          #5
          Re: 67 300 hp acceptable dates

          Think about it, 300hp Corvette in '67 used a Holley, EVERYTHING else on the pass car side used a Q-jet. Makes a lot of sense that way...
          Bill Clupper #618

          Comment

          • Mike E.
            Extremely Frequent Poster
            • February 28, 1975
            • 5136

            #6
            Re: 67 300 hp acceptable dates

            My 19xxx car has an L186 intake--car was VERY original under the hood.

            Comment

            • John H.
              Beyond Control Poster
              • November 30, 1997
              • 16513

              #7
              Re: 67 300 hp acceptable dates

              Originally posted by David Goss (38975)
              Is it correct that Jan 67 base 300hp intake 3872783 could be dated 6 or 7 mths prior to build date? This seems too long but heard these were batched and not uncommon for long lead time. Have 3rd edition Judge Guide but no reference to acceptable lead time on intakes. Thanks in advance
              David -

              The story of my survey that uncovered the anomaly that resulted in the delay of up to a year from casting to assembly of the 783 intake manifolds on '67 300's was published in the "Restorer" in late 2002 or early 2003, and was recognized in the Fourth Edition, Second Printing (2005) of the '67 JG, and carries over to the new just-published Fifth Edition.

              Comment

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