Vacuum line for power brakes - NCRS Discussion Boards

Vacuum line for power brakes

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  • Tom L.
    Expired
    • May 7, 2007
    • 438

    Vacuum line for power brakes

    Would someone be so kind as to post a picture of the vacuum fitting and metal line coming off of the intake manifold for the power brake booster on a 454 with a Quadrajet? My original is long gone and the mounting bracket on the reproduction piece I bought doesn't seem to be a close fit at all. Thanks.
  • Joe L.
    Beyond Control Poster
    • January 31, 1988
    • 43194

    #2
    Re: Vacuum line for power brakes

    Originally posted by Tom Lynam (47343)
    Would someone be so kind as to post a picture of the vacuum fitting and metal line coming off of the intake manifold for the power brake booster on a 454 with a Quadrajet? My original is long gone and the mounting bracket on the reproduction piece I bought doesn't seem to be a close fit at all. Thanks.

    Tom-----


    There were several of these pipes used over the 70-72 period and even GM information is very confusing as to which was used for 1970 with LS-5. So, make sure you have the correct one. Chances are, if the one you have does not fit, you have the wrong one.
    In Appreciation of John Hinckley

    Comment

    • Tom L.
      Expired
      • May 7, 2007
      • 438

      #3
      Re: Vacuum line for power brakes

      Joe,

      I figured as much. This is my second one from the same vendor, the first was incorrect also. I was hoping that if I had a picture of what it should look like, I'll be able to find the right one. Thanks.

      Comment

      • Richard R.
        Expired
        • August 31, 1988
        • 98

        #4
        Re: Vacuum line for power brakes

        I hope you get this picture as I have never sent a photo before.
        Attached Files

        Comment

        • John L.
          Expired
          • September 30, 1996
          • 159

          #5
          Re: Vacuum line for power brakes

          Tom,Richard...What year is your cars? My late 71 454 has the vacume line coming off the rear of the carb. My metal line is dark or black looking, the attachment point on the carb looks the same as yours.
          John

          Comment

          • R N.
            Expired
            • May 31, 2002
            • 640

            #6
            Re: Vacuum line for power brakes

            My '70 LS-5 (Feb build) is the same as Richard's.

            Comment

            • Richard R.
              Expired
              • August 31, 1988
              • 98

              #7
              Re: Vacuum line for power brakes

              My 70 is a May build date. Nothing comes off the rear of carb but the back side of the TCS sol.
              Last edited by Richard R.; July 6, 2008, 08:35 PM.

              Comment

              • Tom L.
                Expired
                • May 7, 2007
                • 438

                #8
                Re: Vacuum line for power brakes

                Thanks Richard. That's exactly what I was looking for. Each of the reproduction pieces I've bought had bends in them in between the fitting and bracket, which I now see is why they didn't fit.

                John, I have a 1970 as well. I think '70 was the only 454 that took vacuum from the intake manifold. Later cars pulled it from the base of the carb.

                Comment

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