old spark plugs

B

Bill Cal.

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

Ken
Click to expand...

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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1955cj5 said:
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....
Click to expand...

Sorry, I got myself mixed up. Of course the 3X was the original. Thank you for your polite and patient answer.

Ken
 
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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