AC Delco Spark Plugs for 4.3L - Iridium vs. Double Platinum?
#11
Platinum is the standard plug designed for these vehicles.
Iridium will also work. Iridium plugs were originally designed for a coil on plug ignition system. Those ignition systems use a lower output voltage.
When setting the gap on your plugs do not use a coin type gap tool. Use a wire or feeler gauge type tool with precious metal type plugs.
Iridium will also work. Iridium plugs were originally designed for a coil on plug ignition system. Those ignition systems use a lower output voltage.
When setting the gap on your plugs do not use a coin type gap tool. Use a wire or feeler gauge type tool with precious metal type plugs.
#12
ACDelco 41-993 specs
41-993 's
#13
#14
I am aware this thread is 5 years old.
I am also aware that the only spec that post #3 gives, is ". 060"".
Thanks.
I am also aware that the only spec that post #3 gives, is ". 060"".
Thanks.
#15
#16
Old thread, play nice, *THREAD CLOSED*
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ExplicitYourSelf
Engine & Transmission
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07-08-2009 11:51 AM