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Changing Plugs And Wires.

HDdave

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HDdave Enthusiast

HDdave

Posted
Posted

Well with 103k on my stock plugs, I think its time for some new ones. Everyone seems to like AC delco, so thats what I plan on buying, but I don't know what to do for wires. I would like to get a set of wires that will flow a little better than stock. I was looking at bosch, msd, ect.. but I just wanted to know if it would be worth getting a larger diameter wire than stock. I'm not sure what stocks are, but I have been looking at 8mm or 8.5mm. I just don't know if its worth it when all I have done to the truck is duals and a CAI. I plan on putting in a predator tuner this summer too..

 

Also, I don't know whether to get irridium, or just platnum plugs. I know the irridums all come gapped at .040, but it says to gap plugs to .060 in the manual, and I have actually heard of people losing milage when they gap the plugs at .040. I am hoping to get to the store today to buy all the stuff..

Hammer2785 Enthusiast

Hammer2785

Posted
Posted

I changed my 2000 from the original .060 to the updated .040 and have had no negative effects. I tried some cheaper bosch plugs first and they were absolute garbage. I would definitely recommend the ACDelco irridiums.

2500HD 8.1 Enthusiast

2500HD 8.1

Posted
Posted

Yea, go with the AC Iridiums or the NGK Iridiums, but definetely go with an Iridium plug. I have the Taylor Thundervolt 50 wires and they are nice. I had also used the MDS 8.5s on my 01 Suburban. The guy at Summit Racing recommended the Taylors over the MSDs. Make sure you check the gap on any and all plugs that you buy. They are never pre-gapped even if they claim to be.

HDdave Enthusiast

HDdave

Posted
  • Author
Posted

Are the aftermarket wires actually worth it for what I have? I bought the iridium plugs and Xact 7mm wires, but if the other ones are that much better I can return the xacts and buy MDS's or sumthing.

2500HD 8.1 Enthusiast

2500HD 8.1

Posted
Posted
Are the aftermarket wires actually worth it for what I have? I bought the iridium plugs and Xact 7mm wires, but if the other ones are that much better I can return the xacts and buy MDS's or sumthing.

 

I never heard of Xact wires, but I'm sure that there is not too much difference. I would stick to a good named brand.

HDdave Enthusiast

HDdave

Posted
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Posted

Very quick question. When I pulled off each individual boot off of the plug, the little metal guard around the boot came off. I can't get them back in either, so do I really need them. My dad has driven small block chevys for years and he says he has never even seen them before so I shouldnt get aggrivated if they wont go back in, and just throw them out. Will that be ok? All they look like to me is a heat shield from the header, and all the plug wires are high temp and have a lifetime warranty

Nytemare Senior Enthusiast

Nytemare

Posted
Posted

I put mine back there, cant have too much heat protection. I bought MSD wires, 40 ohms/ft. they're an 8.8mm (or 8mm cant remember), red wires, so they look cool, and they're silicon boots and wire jackets. They cost me like 15 bucks more than stock replacements so I figured why not.

HDdave Enthusiast

HDdave

Posted
  • Author
Posted

Yeah, I took back those Xacts and bought some autolite's. Noone had any 8mm wires so I said screw it... Its not like its a 500hp race motor... I will give it another shot getting those stupid things back in, but if not oh well...

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