Big Twin spark plug recomendation - AMCA Forum

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ldfly112

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Join Date: Sep 2017

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#1

Big Twin spark plug recomendation

03-09-2022, 08:49 PM

I am getting close to completing my 1937 UL alum. heads 80 " pistons M51 L carb. anybody have a suggestion on the spark plug that would work best
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ammorest

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Join Date: Sep 2008

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#2

03-10-2022, 06:26 AM

Champion D 16 Gap: .025 to .030
Dave
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ldfly112

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#3

03-10-2022, 06:27 AM

Thanks Dave
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kitabel

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#4

03-10-2022, 09:02 AM

For extended cruising, go to D14 and compare color

The Linkert Book
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Jerry Wieland

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#5

03-10-2022, 12:30 PM

Me the guy that hates Champion plugs use either a C86 AC or a 386 Autolite. Jerry
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kitabel

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#6

03-10-2022, 06:26 PM

http://victorylibrary.com/tech/plug.htm

The Linkert Book
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ldfly112

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#7

03-10-2022, 06:38 PM

thanks all very much appreciated
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