pcm spark plugs R030011 are 95-100 dollars. they are ac delco plugs correct. anything special about them. i believe they are 41-110 ac delco plugs that are 5 dollars at auto parts.
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I'm not sure about the numbers, but the "zone" was able to cross them in their computer with several choices. I used the platinum tipped ones all last year with no problems, pulled this winter, still look new. They were about three bucks apiece if I remember correctly.2005 SV-211
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Spark Plugs
I switched to triple platinum autolites 3 years ago in my '04 196 5.7L and have no issues at all. Runs great, smooth andjust as consistent (if not better) than the stock plugs. Sorry I don't remember the stock # or the autolite # I am running but if you have similar yr/boat/motor I would be happy to get them for you.2004 196 LE Black/Grey
330HP Excalibur Water Churner
2002 Grey F150 Harley
475+HP Supercharged Tire Burner
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