6.32 vs 5.3 = apples vs oranges.
Later model '14 and up 5.3 have 355 hp 383 torque.
The 6.2 in 1500 GM trucks has 420 hp and 460 torque.
My wife has the new 5.3 in a 2016 1500 crew cab chevy 6 speed. I just came off a 318 mile (round trip) pulling a 10k car hauler with 9460 lbs on the trailers axles. Now it not up to my 2500 Dodge/Cummins performance but it hands down does a much better job pulling the same trailer combo on the same trip with her older '06 1500 5.3 chevy crew cab 4l60e. No comparo.