J7J, J6J plugs

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  • March 14, 2016 at 4:45 pm #3842
    mercuryman
    Participant

      When where these plugs last made.

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      March 15, 2016 at 11:47 pm #33493
      RICK EICHRODT
      Participant

        My guess is that they were made into the late 1970’s to mid 80’s. The J6J became a J6C and is still made today. Not sure about the J7J if it was made into a J7C or not.

        March 16, 2016 at 12:41 am #33499
        retiredoz
        Participant

          The J7J morphed into the J8C, but the best I got was it was discontinued sometime prior to ’89.

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