Experiment
#1
02-09-2009 | 08:28 PM
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From: Waldorf, MD
Experiment
Ok, I have been getting mixed reports from drivers/owners about the Autolite 3923 spark plugs in the HO engine and a few tell me to go with the NGK Iridiums. So I went ahead and decided to do the $11 experiment with the Autolites instead of $65 for the Iridiums. I go to the store and only to find out the Autolites for the V8 are NOT the 3923s as told, those are for the V6s. The V8 spark plugs are the 5224s. Is this merely an oopsy from everyone thinking it is common knowledge about the 5224s or is it actually because of the tighter gap in the 3923s perform better in the V8? The 3923s have a gap of .035, while the V8's 5224 have a .040 gap.
#3
02-09-2009 | 09:27 PM
Ok, I have been getting mixed reports from drivers/owners about the Autolite 3923 spark plugs in the HO engine and a few tell me to go with the NGK Iridiums. So I went ahead and decided to do the $11 experiment with the Autolites instead of $65 for the Iridiums. I go to the store and only to find out the Autolites for the V8 are NOT the 3923s as told, those are for the V6s. The V8 spark plugs are the 5224s. Is this merely an oopsy from everyone thinking it is common knowledge about the 5224s or is it actually because of the tighter gap in the 3923s perform better in the V8? The 3923s have a gap of .035, while the V8's 5224 have a .040 gap.
If this is the first time you're changing the plugs and you want some entertainment check the gaps on the factory ones. Mine were all gapped differently from the factory, great quality control that day, lol.
#4
02-09-2009 | 10:02 PM
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From: Waldorf, MD
Hmmmmm
The choice of the 3923's is purposeful for the reason f0x672 stated. Gap them to what your engine calls for, personally I never trust spark plugs to be gapped correctly out of the box, often I find a few are off.
If this is the first time you're changing the plugs and you want some entertainment check the gaps on the factory ones. Mine were all gapped differently from the factory, great quality control that day, lol.
If this is the first time you're changing the plugs and you want some entertainment check the gaps on the factory ones. Mine were all gapped differently from the factory, great quality control that day, lol.
#5
02-10-2009 | 01:49 AM
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From: ct.
a cooler plug will get rid of pinging from bad gas, a cooler plug will increase gas mileage, but not much. a cooler plug lets you run more nitrous than whats called for. a cooler plug just makes the engine run better. i had the 5224 and lost about 80 miles to a tank of gas and truck ran terrible.
#7
02-10-2009 | 07:28 AM
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#9
02-10-2009 | 09:28 AM
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