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spark plugs

Post  Larry Williams on July 20th 2012, 11:48 am

how does the heat range compare between an autolite ar 3935 and a 3922 also is a ar 3934 hotter or colder than an ar 3935?
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Re: spark plugs

Post  Lem Evans on July 20th 2012, 12:01 pm

The higher the # the hotter with Autolite.....with NGK it works backwards of that.

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Re: spark plugs

Post  Larry Williams on July 20th 2012, 12:05 pm

do they make an ar 3922?
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Re: spark plugs

Post  Lem Evans on July 20th 2012, 12:08 pm

Larry Williams wrote:do they make an ar 3922?

I'm not sure.......but there is a AR3932

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Re: spark plugs

Post  Larry Williams on July 20th 2012, 12:38 pm

how would that compair to the 3922 as far as heat? the 3922 is not a side gap plug
its what the afr recommends as a starting point
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heat range chart for autolites

Post  kim on July 20th 2012, 12:46 pm


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