Well here are my thoughts on the 5.3 liter engine, my last two trucks were a
98 Z71 4x4 with 5.7 liter, was a pig on gas and had average power and acceleration, towing power was average, next vehicle was a 2000 Sierra with 5.3, fuel economy was noticably better towing about the same, acceleration noticably better than the 5.7, now I have a brand new, chevy avalanche with the 5.3 and I have noticed that the acceleration is not nearly as good as the Sierra but I am hoping that it is just break in, towing is about the same, ride is 100% better. I have heard that the Avalanche is sitting on a Burb frame, don't know if that is true but could be the reason why it feels so much better. I also heard that the Avalanche is a much heavier vehicle which could explain the reason for not as good acceleration. Just my 2 cents worth.- Vote on answer
- posted
20 years ago