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Author Topic: Spark plug question?  (Read 826 times)

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james

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Spark plug question?
« on: April 15, 2021, 05:40:36 PM »
For a 427 stroked to 482 would the Autolite Ar-3923 be a good plug to use? And what plug for a boss 460 engine stroked to 572? Thank You!
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blykins

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Re: Spark plug question?
« Reply #1 on: April 15, 2021, 05:59:02 PM »
Tons of variables there.   Compression ratio?  What heads? 
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Brent Lykins
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Jb427

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Re: Spark plug question?
« Reply #2 on: April 20, 2021, 11:20:04 PM »
What is the non resistor version of autolite 3923?
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