HORSEPOWER OF THE 5.3
i had a 2006, and it originnally came with like hp in the high 200's. but we added an air filter and dual exhaust, and we were cruisin around the mid to high 300's in horsepower
If i'm not mistaken 295 hp.
I have a 2005 silverado and bought it off the lot...i think i have ablout 300 hp...
about 300 hp. good gas mileage. plenty of power. good choice. dad
most 5.3s have 295 horsepower but in 2005 they had a 5.3 h.o. only 25% of the trucks made in 05 had that engine and it had 310 horsepower but now the newer 5.3s have 315
The 99-01 5.3L had 270, the 02 had I think 285 and 03-06 have 295 and the 07 and up are at 315.
my 99 GMC has 325 stock. so u guys might want to rethink your answers. And I work for GM
How many times can you blow up the earth? at last check...only once.
To many variables to say. I do believe the out of the box HP was supposed to be 270. Changing sparkplugs and their gap, cool air induction, no alcohol gas (https://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4GGNI_enUS508US508&q=No+alchol+gas ) and a few other things can give you 20-30 hp. I piked up 22hp with a KN air filter and some Halo plugs and some prolong engine oil treatment.
Hey my Chevy has a sticker that previous owner put and it says 377hp it's that possible and it does hawlass
You can have all kinds of stickers made up with anything in the world on them. I would not put any stock in non-certified labels. If you really want to know take it and have it dyno-tested and get a technician to certified a copy of the print out for verification and showing off with your friends and acquaintances. Stickers are no more than window dressing. I avoid advertising anything about my vehicle, it is another step away from a car thief and having your ride stripped in a chop shop. Deputy Jim
8th number in vin.if it is a B then its a 310 hp 5.3
My new 2016 2500 gets 355hp in the 5.3l engine. I could have gone up to the higher engine but I dont need to tow a house. 355 is fine with me.
i have a 2008 GMC sierra 5.3 it is stuck and it has 357hp
I have a 2002 Chev Silverado 1500 and it has a 5.3 Vortec in it with 355 hp.
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