Quote:
Originally Posted by BIG ORANGE
usmcchevy guy says that I can tune my 4.8 to run like a 5.3 atleast that's what I gathered from his reply above. So if that the truth then why change motor's? What kind of program needs to be added or what??? I'm clueless to this pcm crap!!!
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I was just pointing out a stock 5.3L will run just as good with the stock 4.8L tune as it does with a stock 5.3L tune in the PCM. I have swaped several 4.8s for 5.3s for towing purposes & the 5.3 always outperfomes the 4.8