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Old 04-24-2018, 07:25 PM   #1
Bill Cal.
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Default old spark plugs

I came across a bag of unused Champion C-4 spark plugs at a yard sale a while back. It was an estate sale and the owner had owned a Ford garage for many years. Could these plugs be used in a Model A engine or are they fishing sinkers? Thanks for your thought, Bill
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Old 04-24-2018, 09:46 PM   #2
ursus
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Default Re: old spark plugs

No problemo, Bill, just send that bag of C-4 plugs to me as I will use them. Will be driving my Model A to the coast for some surf fishing.
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Old 04-25-2018, 09:36 AM   #3
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Default Re: old spark plugs

I have 2 new Champion C-4 spark plugs and have been looking for 2 more, ifn you're willing to sell 2 of them send me a PM.
Tnx, Ken
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Old 04-25-2018, 09:49 AM   #4
barnstuf
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Default Re: old spark plugs

The Champion C 4 spark plug was the plug introduced for the 1932 Ford V8 engine. It is a close match in heat range for the Model A and Model B, will fit and will give satisfactory service to the A and B engine. By the way the 1933 and later Ford V8 engines used a different spark plug and the C 4 will not fit or work with them.
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Old 04-25-2018, 07:43 PM   #5
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Default Re: old spark plugs

Quote:
Originally Posted by barnstuf View Post
The Champion C 4 spark plug was the plug introduced for the 1932 Ford V8 engine.
I had never heard that before. If that is the case, what was the original plug for the Model A?

Ken
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Old 04-25-2018, 07:53 PM   #6
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Default Re: old spark plugs

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I had never heard that before. If that is the case, what was the original plug for the Model A?

Ken
According to the Judging Standards page 2-12 revised 2011, the original plug was a Champion 3X..with the "round top" number 3.....the picture shows one with the center section loosened....
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Old 04-25-2018, 08:01 PM   #7
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Default Re: old spark plugs

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Originally Posted by 1955cj5 View Post
According to the Judging Standards page 2-12 revised 2011, the original plug was a Champion 3X..with the "round top" number 3.....the picture shows one with the center section loosened....
Sorry, I got myself mixed up. Of course the 3X was the original. Thank you for your polite and patient answer.

Ken
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Old 04-26-2018, 01:28 PM   #8
Bill Cal.
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Default Re: old spark plugs

Thanks everyone. Seems like these plugs should go to someone with a V8 32 ford engine.
Bill
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Old 04-26-2018, 02:20 PM   #9
Ian in Mississauga
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Default Re: old spark plugs

Bill, Do not limit your potential market to the 32 Ford V8. The C4 was probably the most common 7/8-18 plug in use in the 1920's and early 1930's. High end cars like Auburn, Cadillac and Packard to Ford competitors like Chev, Dodge and Plymouth all used them. I saw this info in an old pamphlet put out by Champion.
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Old 04-26-2018, 02:56 PM   #10
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Default Re: old spark plugs

C-4 plugs work great in the model a engine, and usually better than modern replacement plugs.
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