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289 spark plugs

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  • Ignition: 289 spark plugs

    Hi, Can anybody tell me a good number for a champion spark plug for my 62 289 V8? Thanks. Dave

    David G. Nittler
    David G. Nittler

  • #2
    Champion H-14Y
    Frank van Doorn
    Omaha, Ne.
    1962 GT Hawk 289 4 speed
    1941 Champion streetrod, R-2 Powered, GM 200-4R trans.
    1952 V-8 232 Commander State "Starliner" hardtop OD

    Comment


    • #3
      Autolite 437 or Bosch WR9FC (latter is a resistor type plug; 437 is a direct interchange)

      nate

      --
      55 Commander Starlight
      http://members.cox.net/njnagel
      --
      55 Commander Starlight
      http://members.cox.net/njnagel

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      • #4
        What is the modern number for the Champion H-14Y

        David G. Nittler
        David G. Nittler

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        • #5
          H14Y, or something that has H14Y in it (i.e. RH14YC is a resistor type copper core plug with the same specs as the old H14Y)

          I've heard that H18Y is actually a better current plug for regular use, but I actually have been using the Autolite and Bosch numbers that I gave.

          nate

          --
          55 Commander Starlight
          http://members.cox.net/njnagel
          --
          55 Commander Starlight
          http://members.cox.net/njnagel

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          • #6
            Nate,
            With the state of gasoline as we know it, do you feel that the Bosch, or Autolite is better than Champion? I need to do whatever, to help my hot idle. It keeps getting slower, the hotter it gets. I have a 62 GT, 4 speed w/AC.

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            • #7
              In any Champion plug book from at least the last ten years, the correct plug has changed to RH18Y. Forget H14Y! They're past history, and they will foul out. Then you'll nod in agreement when you hear someone cussing those dxxx Champion spark plugs!


              Dwain G.

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              • #8
                Same for a 259?

                Don Wilson
                53 Commander Hardtop
                64 Champ 1/2 ton
                Centralia, WA
                Don Wilson, Centralia, WA

                40 Champion 4 door*
                50 Champion 2 door*
                53 Commander K Auto*
                53 Commander K overdrive*
                55 President Speedster
                62 GT 4Speed*
                63 Avanti R1*
                64 Champ 1/2 ton

                * Formerly owned

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                • #9
                  Would these recommendations be the same for an R1 289?

                  63 Avanti R1 2788
                  1914 Stutz Bearcat
                  (George Barris replica)

                  Washington State
                  63 Avanti R1 2788
                  1914 Stutz Bearcat
                  (George Barris replica)

                  Washington State

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                  • #10
                    Several of you folks seem to dislike Champion plugs, but I prefer Champion over all others. Japanese motorcycle ignitions have always been like many modern car ignitions with dual lead coils. One coil fires both plugs simultaneously, which means one of the plugs is firing on the exhaust stroke and doubles the wear on the plug. In addition, motorcycle engines often turn double the rpms of a car engine, so a bike plug gets four times the wear as does a car plug engine with a distributor. *** bikes used to be notorious for having weak, low voltage ignitions and as soon as a plug built up a little internal resistance from use, they'd misfire. I found the worst of the lot was the Japanese ND and NGK plugs and would be sputtering within 5,000 miles. Germany's Bosch was better, Autolite better yet at 10,000 or more miles and Champion was by far the best of all. In fact, I'd usually run them to 15,000 miles and changed them not because of misfire or poor performance but just because I figured they needed it. To tell the truth, I never saw any improvment in performance when Champion switched to the supposedly better copper core.

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                    • #11
                      Don't dislike Champions, dislike the gas we have now. Instead of a spark plug, we need the ignitor that Emeril uses to light his Bananas Foster. The alcohol content is about the same.

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                      • #12
                        R1 engines specified a J12Y which is a shorter reach (3/8") than the H14Y (7/16") - BUT the R1 head castings are the same as a late V-8. Which is a better fit in your engine? if you are concerned to this level of detail best to check the depth of the threads in the head and then make your selection.

                        I've always wondered, did the R1 heads have the chambers machined back a little, or did Stude specify the J12Y plugs simply because there was no such thing as a H12Y?

                        nate

                        --
                        55 Commander Starlight
                        http://members.cox.net/njnagel
                        --
                        55 Commander Starlight
                        http://members.cox.net/njnagel

                        Comment


                        • #13
                          quote:Originally posted by N8N

                          R1 engines specified a J12Y which is a shorter reach (3/8") than the H14Y (7/16") - BUT the R1 head castings are the same as a late V-8. Which is a better fit in your engine? if you are concerned to this level of detail best to check the depth of the threads in the head and then make your selection.

                          I've always wondered, did the R1 heads have the chambers machined back a little, or did Stude specify the J12Y plugs simply because there was no such thing as a H12Y?

                          nate

                          --
                          55 Commander Starlight
                          http://members.cox.net/njnagel
                          Might have something to do with the R1 pistons being flat top instead of dished.

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                          • #14
                            FWIW I have the WR9FC's in my R1 right now simply because I neglected to source a set of the "correct" R1 spark plugs when I was ready to fire it up. I haven't noticed any bent electrodes, etc. If nothing else the 259s also used flattop pistons and those spec'd the H14Y or H18Y depending on year. I haven't really beat on it though; I suspect I will have to get some colder plugs at some point.

                            nate

                            --
                            55 Commander Starlight
                            http://members.cox.net/njnagel
                            --
                            55 Commander Starlight
                            http://members.cox.net/njnagel

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                            • #15
                              quote:Originally posted by N8N

                              FWIW I have the WR9FC's in my R1 right now simply because I neglected to source a set of the "correct" R1 spark plugs when I was ready to fire it up. I haven't noticed any bent electrodes, etc. If nothing else the 259s also used flattop pistons and those spec'd the H14Y or H18Y depending on year. I haven't really beat on it though; I suspect I will have to get some colder plugs at some point.

                              nate

                              --
                              55 Commander Starlight
                              http://members.cox.net/njnagel
                              It could easily be that the shorter reach of the plugs for the R1 has nothing to do with there being less clearance between the piston and head. I never paid any attention to the reach of the plugs. I thought the different plug designations for the R-series and regular V8's was because Studebaker wanted a cooler temperature range for the plugs in the R-series engines, not because there was less clearance.

                              The pistons in the 259 are flat on top but they do not travel as far out in the cylinder. The stroke is shorter on the 259 V8.

                              Dale

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