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Old 05-21-2013, 10:50 PM   #1
REByar
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Default Is there Difference between Champion 3X Spark plugs

Hi All

IS there a difference between the Champion 3X plugs sold by Snyders, Macs, Brattons and the 3X plugs sold by O'Reilys (Champion part #429) ?

Any thoughts would be greatly appreciated.

Thanks
REB
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Old 05-21-2013, 11:32 PM   #2
Tom Wesenberg
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Default Re: Is there Difference between Champion 3X Spark plugs

I don't think so, as there is only the modern repro 3X being sold now.
It's too bad the thick hex for 28-9 isn't being made.

The 3 now has a flat top, and the knurling is also wrong.
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Old 05-22-2013, 12:06 AM   #3
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Default Re: Is there Difference between Champion 3X Spark plugs

Can anyone post a picture of the different types of 3's, including the original and current versions?
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Old 05-22-2013, 04:16 AM   #4
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Default Re: Is there Difference between Champion 3X Spark plugs

700rpm here are some drawings of the differences, I will try to post some actual photos later today. http://modelabasics.com/3xplug.htm



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Old 05-22-2013, 07:31 AM   #5
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Default Re: Is there Difference between Champion 3X Spark plugs

The diamond knurling pattern stands OUT on original plugs and they go IN on the repro 3X, plus the knurling doesn't run all the way down on the modern 3X.
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Old 05-22-2013, 10:53 AM   #6
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Default Re: Is there Difference between Champion 3X Spark plugs

Quote:
Originally Posted by 30ccpickup View Post
700rpm here are some drawings of the differences, I will try to post some actual photos later today. http://modelabasics.com/3xplug.htm



Thank you!
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Old 05-22-2013, 12:39 PM   #7
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Default Re: Is there Difference between Champion 3X Spark plugs

It's a real shame that they went through so much to duplicate the plug and missed on a few details.
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Old 05-22-2013, 06:06 PM   #8
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Default Re: Is there Difference between Champion 3X Spark plugs

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Originally Posted by FL&WVMIKE View Post
It's a real shame that they went through so much to duplicate the plug and missed on a few details.
MIKE
It's always like that, isn't it? But still, they look pretty neat in the car.
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Old 05-22-2013, 06:36 PM   #9
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Default Re: Is there Difference between Champion 3X Spark plugs

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