so i just came back to the 6.2 world.
my suburban had a 6.2 mated to a th400 & 4.11s. it hit 17-19 mpg on long freeway drives.
i just bought a blazer/jimmy w/ the 6.2 mated to a 700r4 (not sure gears). havent done a full calculation but im getting close to 23-25mpg. this thing is totaly freeway friendly minus getting up to speed to merge onto the freeway.

& im just curious has anyone over heated one of these 6.2s(w/ a working cooling system)? i could not make either of them hit 200 degrees unless up a steep grade w/ my foot pinned