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Spark Plug '47 Custom 356ci 14mm Head
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Pappy47
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I have a 47 Custom with 356ci that has 14mm head for spark plugs. Can you recommend a couple of good brands AND part number please? Big thank you!

Posted on: 2022/10/27 2:57
Pappy47
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Re: Spark Plug '47 Custom 356ci 14mm Head
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Owen_Dyneto
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AutoLite 308 is my choice.

Could you post the casting date on your head with 14mm plugs? Most of the 356 heads I 've seen with 14mm plugs were cast in early 1951, whether for marine use or as replacement auto use I don't know.

Posted on: 2022/10/27 7:41
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Re: Spark Plug '47 Custom 356ci 14mm Head
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Pappy47
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Thank you sir! 2-3-50 & above that is 389700.

Posted on: 2022/10/27 15:50
Pappy47
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