Spark Plug Replacement

StangVertGT

Member

Mar 2, 2013

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Apr 26, 2013

#1

• Apr 26, 2013

• #1

I have a 2002 Mustang GT 4.6L and I use it as a daily driver. I'm replacing the spark plugs and would like to know what kind to buy.

Thanks for your help!

 

trinity_gt

10 Year Member

Jan 31, 2003

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Canada

Apr 26, 2013

#2

• Apr 26, 2013

• #2

Go to the Ford dealership parts counter. Best plugs for a stock engine.

 

StangVertGT

Member

Mar 2, 2013

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Apr 26, 2013

#3

• Apr 26, 2013

• #3

trinity_gt said:

Go to the Ford dealership parts counter. Best plugs for a stock engine.

Click to expand...

Thanks but that's what I was trying to avoid doing, that's why I asked on here.

 

trinity_gt

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Apr 26, 2013

#4

• Apr 26, 2013

• #4

StangVertGT said:

Thanks but that's what I was trying to avoid doing...

Click to expand...

Why?

 

StangVertGT

Member

Mar 2, 2013

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Apr 26, 2013

#5

• Apr 26, 2013

• #5

trinity_gt said:

Why?

Click to expand...

Because they always want stock, I want performance and quality.

 

trinity_gt

10 Year Member

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Apr 26, 2013

#6

• Apr 26, 2013

• #6

You'll get the most performance and quality out of OEM parts. If you were boosted or spraying nitrous I'd recommend an NGK TR6 (one range cooler than stock) but for a normally-aspirated engine you'd be risking fouling with a cooler plug.

What quality shortcomings are you thinking of with OE stuff?

How much of a performance gain do you expect with non-OE plugs and by what mechanism?

 

StangVertGT

Member

Mar 2, 2013

199

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Apr 26, 2013

#7

• Apr 26, 2013

• #7

trinity_gt said:

You'll get the most performance and quality out of OEM parts. If you were boosted or spraying nitrous I'd recommend an NGK TR6 (one range cooler than stock) but for a normally-aspirated engine you'd be risking fouling with a cooler plug.

What quality shortcomings are you thinking of with OE stuff?

How much of a performance gain do you expect with non-OE plugs and by what mechanism?

Click to expand...

I just assumed aftermarket was better quality than oem that's all. Guess I was wrong. I ordered the motocraft SP493 on eBay. I was told that's oem and best option. Why does American Muscle promote NGK so much then and not motocraft?

 

D

Deleted member 38176

Apr 27, 2013

#8

• Apr 27, 2013

• #8

StangVertGT said:

Because they always want stock, I want performance and quality.

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You don't get ANY performance out of any of the different spark plugs, they mean NOTHING. Spark plugs are an after-thought, they mean absolutely nothing. Get whatever is cheaper. I got OE Motorcraft plugs off American Muscle for cheap. Don't be a ricer and thing plugs are important.

 

Reactions: fordx316

StangVertGT

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Mar 2, 2013

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Apr 27, 2013

#9

• Apr 27, 2013

• #9

Nightfire said:

You don't get ANY performance out of any of the different spark plugs, they mean NOTHING. Spark plugs are an after-thought, they mean absolutely nothing. Get whatever is cheaper. I got OE Motorcraft plugs off American Muscle for cheap. Don't be a ricer and thing plugs are important.

Click to expand...

No, No, I'm not. It states on American Muscle under NGK it says performance. That's why I thought it did. So obviously I want the best for my car at a price I can afford. So if there's better performance ones, then I wanted them. You know?

 

Team Ford

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Dec 16, 2005

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Apr 27, 2013

#10

• Apr 27, 2013

• #10

Heres a link to the Motorcraft Standard service plug.

SP-493

 

StangVertGT

Member

Mar 2, 2013

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Apr 27, 2013

#11

• Apr 27, 2013

• #11

Team Ford said:

Heres a link to the Motorcraft Standard service plug.

SP-493

Click to expand...

Thanks. Already ordered those from eBay for $24 for 8

 

flstang65

10 Year Member

Dec 6, 2007

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SE Georgia

Apr 28, 2013

#12

• Apr 28, 2013

• #12

OE Motorcraft or Autolite ONLY

 

JJ Glo

New Member

Mar 27, 2013

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Apr 29, 2013

#13

• Apr 29, 2013

• #13

I replaced mine today with motorcraft sp-493s from Autozone. Even though they're OEM, check the gap. About 5 of them had about a .58-.59 gap. I set them to about. 54-55

 

fordx316

Member

Jun 2, 2013

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Bergen County, New Jersey

Jun 3, 2013

#14

• Jun 3, 2013

• #14

As far as performance gains.... plugs dont do anything, cold air intake doesn't do anything, stickers and decals don't do anything (unless they're OEM SVT cobra emblems, those add a few horses) If you want to go faster buy some heads cams & intake

 

fordx316

Member

Jun 2, 2013

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Bergen County, New Jersey

Jun 3, 2013

#15

• Jun 3, 2013

• #15

as far as maintenance OEM > AFTERMARKET EVERY SINGLE TIME

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Jun 3, 2013

#16

• Jun 3, 2013

• #16

StangVertGT said:

Because they always want stock, I want performance and quality.

Click to expand...

Don't fall for the marketing hype. The OEM plugs are the best choice here for plugs and a lot of other items