That 6.2 is a bad mofo.

Don't go with the 5.3, terrible fuel mileage, and definitely lacking in the power. My old 4.7 dodge was ten times the motor the 5.3 is.

Now that is laughable. Ive never driven a more miserable truck than a 4.7 dodge.

You and I have polar opposite results.

That's interesting, my 5.3 is a joke. I've never had problems with the engines on either one per se, except my gm now has the tick you hear on all of them.
Both trucks ran 20"wheels and the that 4.7 got better mileage with my 21'bass boat hooked up than the GM empty on the highway, and that's no lie.

Sounds like the 5.3 is the modern day 305, that old engine was a turd as well.

I wouldn’t go that far. The 5.3 is a dam good engine and can easily see 200k miles with basic maintenance. It produces good power for its size. The problem is the transmission bolted to it. I drove a 5.3 backed by a 4L60E and it pulled like a tank in every gear, fast forward 15 years and it’s now an 8-speed with more power and it just feels gutless.