C2 Big block Exhaust Manifold Bolts - NCRS Discussion Boards

C2 Big block Exhaust Manifold Bolts

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  • Blake W.
    Expired
    • April 30, 2001
    • 164

    C2 Big block Exhaust Manifold Bolts

    Do the inner exhaust manifold bolts (4 per side) that bolt the exhaust manifold to the head have lock washers or not? These are not the bolts with the french locks. C2 big block.

    thanks Blake
  • Kieran A.
    Frequent User
    • April 30, 1987
    • 87

    #2
    Re: C2 Big block Exhaust Manifold Bolts

    Blake,I believe the washers are used only on the front and rear bolts to allow proper spacing for the french locks; the four center holes do not utilize the washers. The washers are thick spacer washers,not lock washers, placed between the manifold and the french lock. Regards,Kieran #11373

    Comment

    • Blake W.
      Expired
      • April 30, 2001
      • 164

      #3
      Re: C2 Big block Exhaust Manifold Bolts

      thanks for the reply Kieran. I'm aware of the spacers on the french locks. My question is if the center 4 bolts use any kind of washers, ie a split washer ect???

      Comment

      • Rob A.
        Expired
        • December 1, 1991
        • 2126

        #4
        Re: C2 Big block Exhaust Manifold Bolts

        The center 4 bolts have no washers, lock washers or spacers.

        Comment

        • Kieran A.
          Frequent User
          • April 30, 1987
          • 87

          #5
          Re: C2 Big block Exhaust Manifold Bolts

          Blake,Rob hit the nail on the head;nothing on the four inner bolts. Regards,Kieran #11373

          Comment

          • Blake W.
            Expired
            • April 30, 2001
            • 164

            #6
            Re: C2 Big block Exhaust Manifold Bolts

            Thanks to both of you. Exactly what I needed to know.

            Comment

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