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Aaronoregon · 04-28-2017, 11:37 PM

I've come up against this dilemma a couple times now. For me, I say go with the 5.3. Great mileage, great performance when tuned correctly and the 200K is really nothing for them. In a 3500lb truck you will pull low 20's/mpg all day long with the right gearing and will pull strong. As far as the 4L60e, it's plenty strong if you upgrade to "The Beast" Sunshell and a good corvette servo with that light of a truck. The 4L80e's are obviously stronger, but kind of overkill behind a 5.3 and this light of a truck and rob power/add weight. Good luck with your decision.

04-28-2017, 11:37 PM	#2
Aaronoregon Registered User Join Date: May 2013 Location: Bend, Oregon Posts: 75	Re: what motor should i use I've come up against this dilemma a couple times now. For me, I say go with the 5.3. Great mileage, great performance when tuned correctly and the 200K is really nothing for them. In a 3500lb truck you will pull low 20's/mpg all day long with the right gearing and will pull strong. As far as the 4L60e, it's plenty strong if you upgrade to "The Beast" Sunshell and a good corvette servo with that light of a truck. The 4L80e's are obviously stronger, but kind of overkill behind a 5.3 and this light of a truck and rob power/add weight. Good luck with your decision.