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need help with spark plug choice and tapered or flat

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08-02-2017, 03:11 PM

#10

Harley03joe

Registered User

Join Date: Apr 2016

Location: Miramar Florida

Posts: 153

Re: need help with spark plug choice and tapered or flat

Quote:

Originally Posted by davepl

Just installed Autolite 3922s which are a 5/8 washer plug. That was in an aluminum head, but they do exist... this is a cold plug for a turbo motor, 3924 would be the normal heat range I think.

Dave Is The Spark Plug In My 87 R 10 Chevy Silverado 5.7 K Eng 14 MM Thread ??
Thank You
Harley03joe

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