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spark plugs

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  • spark plugs

    Any recomendations for plugs for a 1955 speedster with original engine. Thanks Len

  • #2
    Spark plugs are the "Third rail" of forum discussions. I like Champion, but have had good luck with Bosch too.

    Studebaker On The Net http://stude.com
    64 GT Hawk
    64 R2 4 speed Challenger
    63 R2 4 speed GT Hawk
    63 Daytona Convert.
    53 Street rod
    JDP Maryland

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    • #3
      I've been wondering about this, too. JDP, which Bosch will work in Stude 259 or 289 V8s? Thanks.

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      • #4
        Champion H-14Y (tough to find by that number now.) Champion #91 is the replacement. OR Autolite 437

        Frankly, I've not had a better or worse view as regards brands. If a particular product is persistently faulty, the market will see to it's downfall in no time.
        That's not to say that I'd cheerfully accept Duong-Ha brand as easily as Champion. I'm talking the well-known, established brands.

        Miscreant at large.

        1957 Transtar 1/2ton
        1960 Larkvertible V8
        1958 Provincial wagon
        1953 Commander coupe
        1957 President 2-dr
        1955 President State
        1951 Champion Biz cpe
        1963 Daytona project FS
        No deceptive flags to prove I'm patriotic - no biblical BS to impress - just ME and Studebakers - as it should be.

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        • #5
          Bosch equivalent is WR9FC although if you try to look up a Stude in a Bosch book it will tell you there's no application. I am running them in my car now, although I've also used the Autolite 437s. Both work well. I just used the Bosch because that's what the parts store had in stock that day (I'm kind of prejudiced against Champions, esp. in cars of unknown history/ring integrity as they tend to stay fouled once fouled.) The Bosch are a hair shorter in reach than the others, but I didn't bother to check a spare head to see which actually fit better. I previously had tried some W8AC in my '62 but they were too long in reach, the threads were projecting into the chamber (could feel the carbon dragging when I pulled them to look at them)

          One thing I would not recommend is platinum plugs, especially Bosch. The regular Bosch Supers are great plugs but the plats can't be fouled, period.

          nate

          --
          55 Commander Starlight
          62 Daytona hardtop
          http://home.comcast.net/~njnagel
          --
          55 Commander Starlight
          http://members.cox.net/njnagel

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          • #6
            oh yeah forgot to mention, if you look at the interchange list on my web site (see sig) it actually grew out of my desire to find a Bosch number for spark plugs, believe it or not. After doing lots of research into heat ranges, reaches, etc. we have the mess that is up there now I managed to waste lots of time and create lots of work for myself just so I can buy tuneup parts on sale. But there is some good info on spark plugs there (hotter, colder, etc.)

            nate

            --
            55 Commander Starlight
            62 Daytona hardtop
            http://home.comcast.net/~njnagel
            --
            55 Commander Starlight
            http://members.cox.net/njnagel

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            • #7
              I have Bosch #7519 and took out Champion# H18Y. My understanding is, the Champion H14Y is a cooler plug than the H18Y. The Auto store matched H18Y and gave me the Bosch 7519. I also see WR10FC on the Bosch box. I think the WR9FC is one heat range cooler.

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              • #8
                I believe you are right. H18Y = WR10FC and H14Y = WR9FC. Both of the Bosch numbers are resistor style plugs, FWIW.

                nate

                --
                55 Commander Starlight
                62 Daytona hardtop
                http://home.comcast.net/~njnagel
                --
                55 Commander Starlight
                http://members.cox.net/njnagel

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