C2- Original Big Block?

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  • Ed Jennings

    #1

    C2- Original Big Block?

    I have a 67 coupe that I bought years ago with the idea of using it for a daily driver. It is currently equipped with a 327/350 with some restamped numbers, factory air, ps,pb and 4 speed. I have never considered the possibility that the car was anything other than what it is now, with the exception of possibly having been a base engine car dressed as a 350. Now I'm not so sure. I have found a lot of evidence that the car may have been a big block. The car underwent a major restoration, probably in the late 70's/early 80's. It was in need of cosmetic "freshening" when I bought it, but pretty sound mechanically. Being one to not fix what's not broke, I haven't done a lot of mechanical work on the car and probably haven't looked at it very carefully under the hood until today. Here are the things I have found that make me suspicious that it may have been a BB:

    1. Seven leaf rear spring
    2. HD bolt style U-joints
    3. Rear sway bar
    4. 7/8" front sway bar (not sure about the front springs)
    5. Hood support was originaly attached on the left side. Current rt side bracket is not factory installed. Hood has different color gelcoat than the rest of the car and the front end has never been damaged. I've always thought it was not original.
    6. Over flow tank bracket is not factory installed
    7. Steel oil pressure line
    8. Radiator support appears to have been modified for SB radiator. There ae mounting holes for brackets on each end. Haven't taken the radiator out to look at the bottom
    9. Tach has 6K redline which I think is consistant with 327/350 and 60# oil gauge, but a previous owner made some remark to the effect that the cluster might not be original. Don't remember if there are dates on the back of the cluster or not, been years since I had it out.

    If it turns out this car was a factory BB, I probably will file that info away and continue to drive it as is. The car runs looks and drives almost as new, and I'm not a real BB fan anyway. I am , however, very curious and would like to see some opinions and perhaps some other things I could check.
  • Jerry Clark

    #2
    Re: C2- Original Big Block?

    Hi Ed
    Hiw ta veen?
    Sounds like BB to me and, of course you have covered all I would have
    The presence / absence of TI holes and Ballast resistor would prove little other than point of interest
    Nothing wrong with BBs they just aren't as rare as SBs
    jer

    Comment

    • Wayne W.
      Extremely Frequent Poster
      • May 1, 1982
      • 3605

      #3
      Re: C2- Original Big Block?

      Wow, Thats a switch.

      Comment

      • Ed Jennings

        #4
        Re: C2- Original Big Block?

        There was a time, maybe from the mid 70's to the early 80's when you just almost couldn't give away a BB. And midyear coupes cost a lot more than convertibles at one time as well. Tastes change.

        Comment

        • Patrick H.
          Beyond Control Poster
          • December 1, 1989
          • 11372

          #5
          Re: C2- Original Big Block?

          Come one, new big blocks are built every day. And, if eBay is any indication, 435's and L-89's are leading the way.

          If you ever find anyone building up a 300 horse car, much less with a 3 speed or auto, let me know.

          PH
          Vice-Chairman (West), Michigan Chapter NCRS
          71 "deer modified" coupe
          72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
          2008 coupe
          Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

          Comment

          • Wayne M.
            Expired
            • March 1, 1980
            • 6414

            #6
            Re: C2- Original Big Block?

            Ed --- what about the fuel line (tank to pump); several inches longer on the BB; almost impossible to change without lifting the body (or splicing).

            Comment

            • Page C.
              Very Frequent User
              • February 1, 1979
              • 802

              #7
              Re: C2- Original Big Block?

              Hi Ed,
              Does it still have a tank sticker?
              Page Campbell

              Comment

              • Ed Jennings

                #8
                Re: C2- Original Big Block?

                Been trimmed off and has a rubber hose attached.

                Comment

                • Ed Jennings

                  #9
                  Re: C2- Original Big Block?

                  Long gone. Fuel tank appears to have been replaced long ago.

                  Comment

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