2003 4.3v6 6.0 swap

[banker099]

i think dbw started in 03...not 100% sure tho

[skeet]

i think dbw started in 03...not 100% sure tho

i think youre correct lol, if not mistaken i just picked up a harness for a 6.0 from an 02 and it worked .

[jtaliaferro]

I am missing a few items from the motor.

1. AC unit and hoses.

2. Alternator

3. Starter


I know my AC hoses will not work but will my ac compressor, alternator and starter from the 4.3 bolt to the 6.0l?

I am making a trip to the salvage yard today, what motor mounts will I need for the swap. IE 4.8 5.3 mounts work with the 6.0l?

[jtaliaferro]

After looking over the wiring I am going to take a guess and say that the oil sending unit from the 6.0 will not work with the 5.3 harness?

It seems the oil sending unit from the 5.3l has only one wire, the one on the 6.0l has three wires?


Also it seems the fuel rail system from the 6.0L is a return less system? What is going to be my best option for making my 4.3 fuel system work?