HORSEPOWER OF THE 5.3

Asked by May 11, 2009 at 11:41 AM about the 2004 Chevrolet Silverado 1500 Z71 Ext Cab Short Bed 4WD

Question type: General

HOW MUCH HORSEPOWER DOES THE 2004 5.3 L HAVE

27 Answers

85

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

6 of 6 people found this helpful.
125

If i'm not mistaken 295 hp.

11 of 11 people found this helpful.
80

I have a 2005 silverado and bought it off the lot...i think i have ablout 300 hp...

8 of 8 people found this helpful.
105

315

6 of 6 people found this helpful.
50

about 300 hp. good gas mileage. plenty of power. good choice. dad

5 of 5 people found this helpful.
285

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

20 of 20 people found this helpful.
215

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.

18 of 18 people found this helpful.
200

my 99 GMC has 325 stock. so u guys might want to rethink your answers. And I work for GM

20 of 20 people found this helpful.

How many times can you blow up the earth? at last check...only once.

8 of 8 people found this helpful.
60

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.

1 of 1 people found this helpful.
70

Hey my Chevy has a sticker that previous owner put and it says 377hp it's that possible and it does hawlass

7 of 7 people found this helpful.
60

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

5 of 5 people found this helpful.
190

8th number in vin.if it is a B then its a 310 hp 5.3

19 of 19 people found this helpful.
130

mines T

13 of 13 people found this helpful.
10

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.

1 of 1 people found this helpful.
10

290 hp

1 of 1 people found this helpful.
30

i have a 2008 GMC sierra 5.3 it is stuck and it has 357hp

3 of 3 people found this helpful.
30

I have a 2002 Chev Silverado 1500 and it has a 5.3 Vortec in it with 355 hp.

3 of 3 people found this helpful.

wtf

I have been a Chevy boy my hole life the 2000 5.3 only has 270 HP out the door but yes you can do this and that to make her stand out

My 2005 had 295 hp stock

I have a 2005 1500 cre cab, with th 5.3, and I pull a 30 ft hose neck travel trailer, and it still pulls at 75 to 80 mph. Don't know how much hp it has. But it does the job.It has 140000 miles and still very strong. I love my truck!

10

It's s question whats the fastest way to see HP on a 5.3 4x4

1 of 1 people found this helpful.

I was a GM Certified Truck Expert Sales Consultant from 2006 to 2012. I had to log over 100 hours of training to be certified. The 5.3L V8 was 305 HP in 2006 through 2012. Active Fuel Management was added with the new body style in 07. (and the oil consumption problems started) There was an aluminum block version that had the "B" in the VIN that was 310 HP. Those people saying they have 355HP or whatever in a 5.3L Vortec are just wrong. it was 305 or 310. GM now uses direct fuel injection and the horsepower is 355. I would suggest you Chevy/GMC guys go drive a Ford Ecoboost or 5.0L V8, a Ram with the Hemi 5.7L, or a Titan with the 5.6L ...(385HP, 385HP, 395HP, and 390HP respectively) and see what horsepower is. Those trucks all get better MPG's than theGM also. The Chevy 5.3L is a gutless pig with shitty gas mileage. End of story.

The first half of what Guru said is true - I've done the research over the last 2 years. However, I would add just a couple items. During the period of the AFM oil consumption issues Fard EcoBust had it's share of problems as well and how could we forget about the deluge of Ram trucks on every car lot from Florida to Hawaii...Ram truck performance was directly inverse to the amount of warranty left...be fair in assessing man. Beyond that, since we are inserting opinions, GM has the pound for pound performance per price locked down. Nobody has got long lasting motors with equal or better performance for that price point. When you add in availability of parts and ease of upgrades...costs remain reasonable and gains are sharp without a dropoff in reliability. If you truly were a GM Certified Sales Consultant, I would think you would know this.

02 5.3 was amazing if you ask me. After what we did with ours we were sitting at 325 horsepower. Only thing messed up on the truck was the bed and after that the transmission was starting to slip a bit but strong truck in all other aspects

GuruZXWC actually u are correct in a way but I have a 2013 Ford f150 v6 and I only get about 17 -19 my 2002 gmc sierra z71 on 35s got 15 city n 18 highway. My mom has a 2017 gmc z71 n she gets 17 city n she went on a trip to Georgia and got 22 mpg. Yes they have 355 now but they are sluggish from bottom end. The hdmi does have lot more horsepower n pick up same as the v8 Ford but not the Nissan 5.6 so I say the gmc gets more mpg then a Ford v8 or even a dodge v8 iv seen results of all of them being 2015 n the gmc got more

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