waynemitchell

I'm putting a 6.0 in my 2000 z71 over the next month currently a 5.3 truck. Is there any difference in the engine harness between the two... can current ecm be flashed to except the new 6.0 or no.. or any other concerns that anyone can think on..

the_merv

iTrader: (88)

6.0 Harness is going to be setup for a 4L80E. If you are just using the Engine then the 5.3 Harness will work fine.