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11-28-2020, 03:24 PM | #1 |
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Original Champion Flathead Spark Plug Question
Hey guys... So I have an original set of Champion 48-12405-A2, 6 COM Flathead spark plugs. From the little bit of info I can find on them looks like they are for earlier flatheads. Will these plugs work fine on a ‘45 59AB? See attached photos. Thanks so much for the info!
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11-28-2020, 03:59 PM | #2 |
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Re: Original Champion Flathead Spark Plug Question
'45 used 14mm plugs, are they 14mm? or 18mm which is '37 and older
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11-28-2020, 04:05 PM | #3 | |
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Re: Original Champion Flathead Spark Plug Question
Quote:
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11-28-2020, 06:04 PM | #4 | |
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Re: Original Champion Flathead Spark Plug Question
Quote:
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11-28-2020, 06:04 PM | #5 |
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Re: Original Champion Flathead Spark Plug Question
Just run NGK B6L plugs
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11-29-2020, 05:54 PM | #6 |
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Re: Original Champion Flathead Spark Plug Question
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11-29-2020, 06:10 PM | #7 |
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Re: Original Champion Flathead Spark Plug Question
You would probably be quite surprised at what that NOS set would be worth to a true restorer. Don't just use them in something 'cuz they fit! DD
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11-29-2020, 11:06 PM | #8 |
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Re: Original Champion Flathead Spark Plug Question
That is the correct plug for a 1960 John Deere 630 .
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11-29-2020, 11:35 PM | #9 |
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Re: Original Champion Flathead Spark Plug Question
And it only requires two!
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11-29-2020, 11:37 PM | #10 |
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Re: Original Champion Flathead Spark Plug Question
You sure, David? That looks like a '35 Ford part number. DD
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11-30-2020, 11:09 AM | #11 |
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Re: Original Champion Flathead Spark Plug Question
They look a little short and fat compared to the J 10 or H 10 Champions we always used in the flatheads from 39 up. Still running some ancient Champions like that in the 52 Merc. and they work fine.
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11-30-2020, 11:49 AM | #12 |
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Re: Original Champion Flathead Spark Plug Question
The parts book shows Spark plug-heavy duty service cars (No. 6 Com'l) 1935-36
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