74 BB Exhaust Manifold Date Question - NCRS Discussion Boards

74 BB Exhaust Manifold Date Question

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  • Victor S.
    Frequent User
    • August 24, 2017
    • 82

    74 BB Exhaust Manifold Date Question

    Hi All -

    Would it be possible to have an exhaust manifold date 12 days after the engine assembly date and it be original to the car? Not sure if all the factory engine components were on the car at engine assembly date or some were installed later??

    Thanks,
    Vic
  • David H.
    Extremely Frequent Poster
    • June 30, 2001
    • 1502

    #2
    Re: 74 BB Exhaust Manifold Date Question

    Victor,

    If you have a 1974 Assembly Information Manual (A.I.M.) check to see if exhaust manifolds have separate part number and bolt torque specification. If so, then manifolds were affixed at plant. If not, then manifolds arrived at StLouis attached to engine. Attached at plant would cut you some slack. In any case, are they prior to car manufacturer date?

    Dave
    Judging Chairman Mid-Way USA (Kansas) Chapter

    Comment

    • Victor S.
      Frequent User
      • August 24, 2017
      • 82

      #3
      Re: 74 BB Exhaust Manifold Date Question

      Thanks Dave - I cannot find exhaust manifold part numbers in the 74 manual so they must hace arrived at St. Louis previously attached

      Comment

      • Joe L.
        Beyond Control Poster
        • February 1, 1988
        • 43198

        #4
        Re: 74 BB Exhaust Manifold Date Question

        Originally posted by Victor Scherer (63906)
        Thanks Dave - I cannot find exhaust manifold part numbers in the 74 manual so they must hace arrived at St. Louis previously attached
        Vic------

        All Corvette exhaust manifolds, small block and big block, were installed at the engine plants.
        In Appreciation of John Hinckley

        Comment

        • Victor S.
          Frequent User
          • August 24, 2017
          • 82

          #5
          Re: 74 BB Exhaust Manifold Date Question

          Thanks Joe!

          Comment

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