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Old 06-17-2008   #23
Pete
 
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
Default Re: Spark Plug Heat Range

Quote:
Originally Posted by flyin ryan
if you can't get FR5, the plug i use is NGK BKR5EIX, stock no: 6341.
Thanks Ryan
I use AC Delco 41-602 gap @.035.
I have tried different gaps and have found .035 works best for stock ignition system.
I don't think there is much HP to be had in our LT5's from spark plugs, if anyone has experienced any differance (more power) i would love to hear about it.
I know plugs make a differance on race motors.

Pete
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'91 #1635 PoloGreen 350 LT5
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11.04 @ 128.86
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