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Old 01-23-2021, 01:17 PM   #1
AveryMcLawhorn
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Default Spark Plugs for 283 SS Motor

Asking for recommendations on spark plugs for a 283 SS Motor. Currently running autolite AR72.
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Old 01-23-2021, 05:03 PM   #2
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Lightbulb Re: Spark Plugs for 283 SS Motor

NGK R5670-7 are what I've always used, but that was a while ago!
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Old 01-24-2021, 02:09 PM   #3
Joe Schweigert
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Default Re: Spark Plugs for 283 SS Motor

NGK isnt what it used to be Quality took a turn downard Autolite is a better choice
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Old 01-25-2021, 08:31 PM   #4
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Default Re: Spark Plugs for 283 SS Motor

Yep, AR72
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Old 01-26-2021, 07:58 PM   #5
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Default Re: Spark Plugs for 283 SS Motor

These engines have low compression ratios ,enormous camshafts , and probably oiling issues from the lowest tension rings and restricted induction systems !! Id go with AR75's as I've seen done !! Gotta go back to the 85b !! sorry if i hijacked your thread !!
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