Spark Plugs 8.1 Copper,platinum, Iridium...?

[yukon25008.1]

Ive read a bunch of previous post but am still on what plug would be the best, its seems like champion is the brand but what about the tips copper iridium or platinum. now its a stock 8.1 but i plan to do a tune, exhaust, and intake. so please let me know what you guys think. the truck has 66,000 on it and was plowed with and pulled a trailer before i got it. so i figure it couldnt hurt to change them now. thanks

[txab]

Put iridium plugs back in it. AC Delco would be my choice

[markw8]

Go with the correct AC Iridium plugs. DO NOT regap them. It will ruin the plug. If the gap isn't correct, on one or more, take them back. The iridium is a coating and will crack and fail if you regap.

 

Mark.

[yukon25008.1]

Go with the correct AC Iridium plugs. DO NOT regap them. It will ruin the plug. If the gap isn't correct, on one or more, take them back. The iridium is a coating and will crack and fail if you regap.

 

Mark.

 

 

tHANK YOU MARK, SO THATS THE BEST PLUG TO GO WITH NO MATTER IF THE MOTOR STAYS STOCK OR TUNED?

aLSO WHY ARE ALL THESE OTHER PEOPLE SWEARING BY CHAMPION PLUGS. AND WHY WOULD A STEP COOLER PLUG? BE BETTER THAN OEM, AND HOW DOES THE PLUG DETERMINE HOT OR COLD? GAP I WOULD IMAGINE.

HOW DO I CHECK THE GAP IF I CANT SLIDE THE LITTLE TOOL IN TO CHECK. THANKS

[REV353]

If your putting new plugs in your spark plug wire are most likely bad too. This is what I installed in mine, I bought Autolite iridium plugs. This is a major bang for the buck, your wires are only 6" long, that makes these wires 25 ohms per foot. Stock is like 165-185.

 

 

• Taylor Cable 82025 - Taylor ThunderVolt 8.2 Spark Plug Wires
  

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• Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Black, Stock Boots, Chevy, GMC, 8.1L, Set
  
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BrandTaylor CableManufacturer's Part Number82025Part TypeSpark Plug Wire SetsProduct LineTaylor ThunderVolt 8.2 Spark Plug WiresSummit Racing Part NumberTAY-82025AssembledYesDiameter (mm)8.20mmRFI SuppressionYesWire ColorBlackDistributor Terminal EndsMale/HEIDistributor Boot ColorBlackDistributor Boot MaterialSiliconeSpark Plug Boot EndsStockSpark Plug Boot ColorGraySpark Plug Boot MaterialSiliconeCoil Wire IncludedNoConductor StyleFerrite coreQuantitySold as a set.

Get more horsepower just by changing your wires!

These ThunderVolt 8.2 wires from Taylor are an easy, proven, dyno-tested way to gain more power simply by changing your spark plug wires! These factory replacement, ultra-high performance ignition wire sets are loaded with features and benefits, including:

 

* 50 ohms of resistance per foot

* 100 percent silicone 2-layer jacket

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[2COR517]

AC Delco is the way to go. I would use ACD wires, or Napa premium.

[yukon25008.1]

AC Delco is the way to go. I would use ACD wires, or Napa premium.

 

 

I think im going to use the oem plug and gap,thank you.

What about msd wires ive always used them and had no problems

[yukon25008.1]

AC Delco is the way to go. I would use ACD wires, or Napa premium.

 

 

What about the tips, are there diffrent delco tips?

platinum or iridium

[yukon25008.1]

Ok i got some plug info i called the gmc dealer and they gave me a # 41-983 does that sound right?

$11 a piece. the parts store was $9 each but not in stock. they said they could give me Autolite double platinum for $5.47 each.

What should i do and if i get the ac delco is that the right part #. they also said the gap was 60,000 is that correct?

[txab]

41-983 is the correct plug. It does have an .060 gap

 

You can buy them on Ebay for $7 per plug incl. shipping

[yukon25008.1]

I found the guy on ebay that has the A/C delco plugs 41-983. the dealer was $11 each, the parts store was $9.45. he has them $7 each free shipping. his user id was (cooltoads2000) or just type (delco 41-983)

[Prokopchuk_9]

I found the guy on ebay that has the A/C delco plugs 41-983. the dealer was $11 each, the parts store was $9.45. he has them $7 each free shipping. his user id was (cooltoads2000) or just type (delco 41-983)

 

 

man you could try anything else but you will be dissapointed!!! AC DELCO ALL THE WAY!!!! i wouldnt put anything other...they are the best for chevy's, champion for dodge, ngk for ford...delco for chevy man....who cares about the price they will last way longer...

[yukon25008.1]

Thanks, i got a set of MSD wires from jegs they were $99. ive always used msd and never had a problem. to bad the coil packs are almost $700

[WilliamBos]

AC Delco is the way to go. I would use ACD wires, or Napa premium.

 

AC Delco Platinum's and AC Delco wires - The only way to go!! You will not be disappointed, we were not!!

[yukon25008.1]

I put in the new plugs yesterday and was concerned when i notice a grayish/yellowish color and powder on t them,which told me the truck was lean (right)? When i called the dealer he looked in some manual it it said that color and small amount of dust was normal??? What have you guys seen when you pulled your plugs

(04 8.1 yukon 2500)