Quote:
Originally Posted by BIG ORANGE
The bore and stroke is different on a 4.8 and a 5.3 isnt it? I would think so!
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The 5.3L is nothing more than a stroked 4.8L. I have a 4.8 in my 02 1500 4x4 with a few bolt ons and it will keep up with the slightly modified 5.3 in my Tahoe. Swap in a LQ9 6.0L cam and a good tune and you would net roughly 330hp or more with the 4.8. its cheaper than a swap and tune. there is a guy on ebay selling genuine gm LQ9 camshafts for $69.