Looks like stockers 'll take ya deep in the 12's with bolt ons

I used NGK tr6's on my ext cab cause I sprayed. Took em out and now there used with my turbo. Yes they're the same ones...I am cheap!!!

 

Well guys- changed the plugs out the other day, Delco 41-985 iridiums. Truth be told the truck got some of it soul back, but then I was also pushing 81k, so how often should you change plugs? What came oACDelco 12567759, apparently made by NGK, #PZTR5A 15. I NGK ran a batch for GM at the time. At around 8 bucks a plug, could I have made do with the copper core? I retained the original wires and read and read and talked to people B4 I did the job.
With a pair of slim electrical pliers I grasped that channel in the metal band around the boot, off of a fulcrumb I popped the boot of- I was astounded how easily this happened after all the horror stories I've heard. The plugs themselves even came out easily, I thought about soaking the plugs with liquid wrench overnight, no need though- took me about an hor and 10 mins to do the job. Now for tuning ...........

 

NGK TR55's or TR6's are great plugs to use. As for wires, I had a set of Taylor 409's and Thundervolts, and with both sets, I had at least two of plug wires break on the FIRST spark plug swap. I was pulling on the boot also, not the wire. The little connector on the wire would break off of the wire and stick to the plug. Then I went with MSD wires and they have held up awesome after multiple plug changes. Taylor wires are crap.

 

What part number are you ordering for your MSD wires on a 5.3L?

Gonna go with the NGK TR55s too. Had them on my LS1 and I liked them alot.

 

After reading all these post I think with my 88Kmi on stock plugs and wires i'm do. Looks like NGK TR55 and MSD is the way to go.

 

Accel Superstock universal set and Bosch double platinum plugs. had to build my own wires.

Should of got the RFI supression wires but i dont listen to the the radio anyway cuz i got the tune of 8 cylinders singing to me the whole time. lol. sorry