6.0 swap to what year??

[jettech]

I have a 1999 silverado Z-71 that is going under for the 6.0 swap but I need to know what year to go with.. I'm wanting to go with the newest year possible so that the milage will be low but how new can I go. How much of the wiring harness do I need to change out also??

[GasGuzzler]

2002-2006 is the easiest swap and there are two major truck types of 6.0. Please do not consider MPG.

[clementeunknown]

01 through 06 mate it with 4l60e by using a 4.8/5.3 flywheel. 99 and 00 only work with the 4l80e because of a longer crankshaft. 99-00 have Iron heads which is a dead give away so you won't get suckered.

[robznob11]

I was told by the gm dealer the other day that cable throttle was normal till 2005 but in 03 the drive by wire could be had as an option so look for a cable drive it will be eaiser should be able to get a 04-05 with 30-50 thousand miles mine is a 04 cable drive with 48000 got it from aa truck and van parts in ft worth texas with tranny for 1900 shipped....

[GasGuzzler]

Almost everything 2003+ is DBW except vans and a few odd combos. It was not an option.

[robznob11]

thats what i thought too untill scoggin dicky service dep told me other wise and my serial # came up as 04 2500hd truck its got a cable. believe me i thought i was lied to about the year thats why i checked...

[GasGuzzler]

Sounds like you disagree yet you said what I did LOL. Vans and odd combos....I said most 03+ Still wasn't an option, just an anomaly, right?

[jettech]

Sounds like you disagree yet you said what I did LOL. Vans and odd combos....I said most 03+ Still wasn't an option, just an anomaly, right?

How about the wiring harness and electrical.. What all do I need to switch over to 6.0 electronics??

[GasGuzzler]

If you get the entire harness, gad pedal, TAC module, PCM, etc. you'd just swap out the entire wiring harness and drivetrain. There will be a few things to redo.

[thArf]

stick with the cable driven pre 03s and you should have to make no major electrical changes