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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 08-07-2007, 09:12 AM   #11
samseed101
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Default RE: 5.0 Spark Plugs

I messed around with different gaps and found that a .040 gap worked the best for me (Autolite 24s.) I went as high as .054 and as low as .035.

Edited to add: of course, this is only because it's not NA
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Old 08-07-2007, 10:36 AM   #12
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Default RE: 5.0 Spark Plugs

Quote:
ORIGINAL: mjr46

call the parts guy a dumbass???? hmm mr adder didn't see that word in my post????
nope... dont see the exact word dumbass, but I do see "nutcracker" and "pendejo"

Quote:
ORIGINAL: mjr46

hmmmmmmmmmm gaping them that wide???? did that nutcraker at advance happen to sell you platnium plugs??? if so I'd remove them and install a set of copper core standard resistor plugs........damn pendejo's at autozone always try and get me to buy the platniums
*edit* I was making a generalized remark. Not all of the people working at part stores are as useless as you think... hell. I bet I could find a few that would make you look like a noob.
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Old 08-07-2007, 11:33 AM   #13
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Default RE: 5.0 Spark Plugs

I gapped mine to .050. Seems to run fine so far. What is the voltage on a stock coil?
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Old 08-07-2007, 11:46 AM   #14
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Default RE: 5.0 Spark Plugs

Anyone ever try NGK's? I hear they are the best.
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Old 08-07-2007, 11:48 AM   #15
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Default RE: 5.0 Spark Plugs

Quote:
ORIGINAL: ktp1598

Anyone ever try NGK's? I hear they are the best.
I have NGK Iridiums on my Vette. There are highly recommended.
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Old 08-07-2007, 12:52 PM   #16
chath_brick
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Default RE: 5.0 Spark Plugs

i gapped mine (autolites) to .052, and it runs perfect.
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Old 08-07-2007, 05:12 PM   #17
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Default RE: 5.0 Spark Plugs

lol OMG. I just REGAPPED Them to 46 Before reading this forum again loll?

What do i do now?
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Old 08-07-2007, 05:33 PM   #18
Ninety5five0
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Default RE: 5.0 Spark Plugs

autolite 25s FTW. In these 5.0s a standard resistor autolite is pretty much the best plug you can run IMO, and i'm sure lots of people on this forum will back me up.
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Old 08-07-2007, 07:13 PM   #19
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Default RE: 5.0 Spark Plugs

I use v power ngks, there working well and are only 2 bux a plug.
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Old 08-07-2007, 09:50 PM   #20
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Default RE: 5.0 Spark Plugs

when i was n/a... autolite 25s gapped at .050(as far as i know, this is stock, not .054, but does it really matter? no, so lets not start an argument, lol)

right now tho, autolite 24s, gapped at eitehr .035 or .040, honestly i forget, and btw ive been runnin like that n/a for a while now w. no problems
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Old 08-07-2007, 09:50 PM
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