Wouldn't it just be cheaperr to take the part # to your local dealer and get them? Plugs are cheap, ordering them from 5 Star might get you them cheaper but the shipping will make it back up and if you go to the dealer you have them now! I don't know the Part # off the top of my head but if you check www.markviii.org in the engine section of the forum you will find the number everywhere.
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