Forum Discussion
blt2ski
Oct 26, 2021Moderator
enblethen wrote:
Grand son has a 5.3 in GMC Sierra. Seems to be under powered!
What year and transmission?
My 2014 4.3 has more grunt than my son's 05 4.8V8. outpulls my old 2000 c2500 with a 350V8..better than some of my old BB rigs too. A lot has to do with the 6 gears in transmission vs 3 and 4 spd transmissions. BUT my 4.3 has more HP than all of them. Better torque multiplication due to trans gears.
Older than 2014 are weaker motors!
Marty
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