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02 gmc Sierra 1500 4.8l to 6.0l 4l80e


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So I am swapping my 02 4.8l to a lq9 6.0l that came out of a 05 Chevy express box truck. I have the engine and tranny installed and getting ready to finish. My question is what all will I have to do to the pcm and ecm tuning wise? 

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