I am looking to change out the wires and plugs on my mostly stock 2k 5.3 silvy. I have a true dual exhaust and a UPD intake. I was looking at the wires today and they dont seem normal, whats up with that??. I am used to my other silverado with a 5.7, these look completely different! Can anyone tell me where to buy a set of good custom fit perfomance wires?? Also, I need some suggestions on plugs. Thanks in advance!

 

https://ls1tech.com/forums/showthread.php?t=132681

the wires listed in this post will work on your truck.

 

i have Taylor Thundervolts that i am selling. they fit perfectly

 

NGK TR 55s on the plugs my friend, you can get them pretty much anywhere, NAPA is my choice!