Installing New Wires

[dukbludvl]

Hi -- I'm thinking of installing either Taylor or MSD wires in my 2000 Yukon with 70K miles on it. I noticed from another site where a guy installed Taylors that he had to remove and not reinstall the heat shields around the one end of the wires because they don't fit through the heat shield. Is this the case with those of you who did change from the factory wires to either Taylor or MSD? If so, is this dangerous or a problem at all?

 

Finally, which Taylor wires do most of you go with? The Spiro Pro? If so, do I need the 90, 135, or 180 degree plug boots for my 5.3L? Do you know which part number I need?

 

For MSD wires, do most of you use the 8.5mm super conductors? If so, do you know the item number? I see on Advance Auto Parts that there are a few:

 

MSD Ignition 31199

Spark Plug Wire Set: Universal 8 Cylinder; 8.5mm Super Conductor

 

MSD Ignition 31239

Spark Plug Wire Set: Universal 8 Cylinder; w/Factory Installed 90 Degree Spark Plug Boots

 

MSD Ignition 31329

Spark Plug Wire Set: 8.5mm Super Conductor

 

Which of these would I need?

 

 

Finally, does anyone know the part number for the copper core NGK tr55 spark plugs and where I can order them from? The NGK site only lists a laser platinum core plug for my 5.3L.

 

Thanks, in advance, for your help. I really appreciate it.

 

Jon

[lotzafun]

Hope this helps you, I installed Thundervolt50 wires by Taylor, ordered them from Summit Racing and got them the next day. Took a whole 10 minutes to installe them. My truck has Gibson headers on them, and I did not reuse any heat shield, the wires are made to take the heat. Been very happy with them so far. Go for it, it is good upgrade and you will be amazed at the size of the wires.

[budhayes3]

I put the MSD 8.5's on my truck in April with Denso Irridiums, love em so far. I tried installing the heat shields, but they fit kinda wierd and looked kinda silly to me, so I took them off. Like lotzafun said, they're made to take the heat. The stock wires are adequate, but hi-perf wires are cool IMO.

 

Oh yea, I got them at Truckperformance.com, $52.99 + 7.99 shipping. Item id#MSD32829. Both the Taylors and the MSD's are good from what I've heard, so either way, you really can't go wrong.

[TarheelZ]

Both the Taylors and the MSD's are good from what I've heard, so either way, you really can't go wrong.

I'll vouch for that. I had the Taylor Spiro Pros on my '99 ZR2 (with JBA shorty headers and MSD 6A) and they performed great! I'm running the MSD 8.5 (with heat shields) on my '00 Sierra and they're great wires also.

 

If it makes any difference to you, the Taylors come in lots of bright colors, too!