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Fullsize New Guy
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82 Posts
Discussion Starter · #1 ·
Just got a used 6L out of an 03 3500 HD. Going from a 5.3L in a '06 1500CC 4X4. I plan to start with a rebuild and slow accumulation of pieces parts. Anybody know:

1) what parts are direct bolt-on / crossover from the 5.3 to the 6.0?
2) any good specific areas to look to for swap info?
3) what new parts am I going to need or what parts will not cross over between the two?

Thanks in advance.
 

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kissin hands shakin babie
Joined
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6,529 Posts
Just got a used 6L out of an 03 3500 HD. Going from a 5.3L in a '06 1500CC 4X4. I plan to start with a rebuild and slow accumulation of pieces parts. Anybody know:

1) what parts are direct bolt-on / crossover from the 5.3 to the 6.0?
2) any good specific areas to look to for swap info?
3) what new parts am I going to need or what parts will not cross over between the two?

Thanks in advance.
95% of everything swaps over, only thing you really have to pay attention to is the throttle body, if your drive by wire, or drive by cable. they are from the outside the same size.

you will need to get the computer flashed for a 6.0 motor though.

and a warning, unless you baby it, it will granade your trans.
 

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dodgin' potholes
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786 Posts
answers:
1. everything
2. PerformanceTrucks.net
3. save up money for a built 4L60E or swap in a 4L80E
 
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