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View Poll Results: Which Brand of spark plug you run?
Autolite 3 2.13%
AC-delco 66 46.81%
Accel 1 0.71%
E3 4 2.84%
Champion 0 0%
Bosch 11 7.80%
Brisk 0 0%
Torque Master 1 0.71%
Motorcraft 0 0%
NGK 45 31.91%
Pulstar 0 0%
Splitfire 1 0.71%
Denso 9 6.38%
Voters: 141. You may not vote on this poll

 
 
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Old 08-21-2020   #32
Hib Halverson
 
Join Date: Jun 2005
Location: CenCoast California
Posts: 899
Default Re: Which Brand of Spark plug do you run??

Quote:
Originally Posted by XfireZ51 View Post
Hib,

Do you know why the 375hp motor has a recommend of a .035? plug gap, while the 405hp motors were spec?d for .050?? Am I correct, and if so, what change made that possible?

I don't know what change made that possible.



As to why the bigger gap, I bet Behan probably knows for sure, but I bet it was to improve idle stability and idle emissions.
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Hib Halverson
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former owner 95 VIN 0140
current owner 19 VIN 1878
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