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  1. #1
    Jr. Engineer
    Join Date
    Dec 2008
    south florida

    Default 2013 4.8 vs. 5.3 ?

    i have started to look at a new silverado..... in the event i can swing the payments, i see in the 4.8L v8's have 302hp with 305lbs torque @ 4600rpm, and the 5.3L has 315hp with 335lbs torque @ 4000rpm...
    is there a noticable difference with the bigger engine ?
    and likes, dislikes about either of the engines ? pro's and con's ?
    thanks for the help guys.
    i looking to get either the extended cab short box or the 4 door short box, since the wheelbase on them both are the same, just a shorter bed in the 4 door model.
    just wouldnt want to be under powered... the only thing i would pull is a small 14ft aluminum jon boat, so not really using the truck to tow anything..... just wanted your thoughts on what motor is best.


  2. #2


    One of our company trucks has the 4.8 it is an extended cab 4x4. When I get out of that and get into my 5.3 I am glad I went with the bigger motor. The 4.8 just seems to be lacking in power. Now to be fair my truck has some mods done to it so I am sure that makes a difference but if all things were the same I would say get the 5.3.

    2011 GMC Sierra SLE - 5.3 - 4X4 - Z71 - King Shock Level Kit - Body Color GMC grill emblem - 2 Tone Engine Cover, Rad Cover and Battery Box - Volant CAI - Tru Cool 40K tranny cooler - Sylvania ZXE bulbs Hi/Low -TriFold Hard Tonneau Cover- CoverCraft Seat Covers - Diablo inTune - GoRecon LED under rail lights - GoRecon LED White Lightning Tailgate Light Bar - Windows tinted to 45%- Kenwood DNX6990 - JL Audio C5-650 &650X- JL Audio Amp- Interco Truxus M/T 33x12.50x18

  3. #3


    Would lean towards the 5.3 myself, have one in the family - an 09 crew - good truck. Would'nt be afraid of the 4.8 either IF it had something like 3.73 gears. Once had a GMC with the 4.3, manual and 3.73 gears, it did quite well for a little V-6, got great mileage too. Have a brand 'X' right now that gets most of my highway driving, it's a 4.6, manual with 3.55"s, it would be a much better truck with some lower gears. I'm also limited on tire size, running 245/75/16, would like to go with 265's but that would just make a real dog out of it. ( yeah, I know, it's already a dog, wear a paper sack over my head when i;m driving it ). Ken

  4. #4
    Master Mechanic silverhobey's Avatar
    Join Date
    Oct 2010
    Cobourg, Ontario, Canada
    Blog Entries


    ...both are good engines, but if price matters, the 5.3 costs more and you would have to weigh the good and bad based on Gas Mileage and the extra cost of purchasing a 5.3.
    ----just my thoughts problems pulling 3000 lbs. with our 4.8 Crew
    Brian from Canada
    Silverado Crew.....4.8 L

    ---Pendaliner BoxLiner and Side Rails....Van and Truck World
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  5. #5


    Both engines are solid and produce plenty of power and have plentiful mods available, but the 5.3 has slightly more power. Both have the same transmission, but the gearing also matters. Personally I'd take the 5.3 because its the engine that replaced GM's 5.7 which I have in my truck.

    1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
    Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.

    Check out my other mods in My Garage:

  6. #6
    Jr. Engineer
    Join Date
    Dec 2008
    south florida


    thanks for the input guys... if i go with a new truck i will go with the 5.3... i too always like bigger. lol.
    still trying to get my 1990 to run right.... good to hear the 5.3 is based on the 5.7
    thanks again.

  7. #7



    Haha no but I think that I would definitely go with the 5.3.

  8. #8


    I have to agree with everyone here, I have a 5.3L and some 2 of my friends have the 4.8L's. The engines are good, but the cost savings you are going to realize from the 4.8L are so small over the 5.3L and you loose so much towing/ weight capacity on the 4.8L that I would get the 5.3L, and tune it with an intune and then just drive like my grandma...... well maybe not, but you get the idea (Don't floor the pedal).

  9. #9

    Enkeiavalanche's Avatar
    Join Date
    Apr 2010
    Piermont,NY, back in Northern NJ now, But may be in IL soon....


    I would always go with the bigger motor, First better power, 2nd better resale, 3rd If you do need to tow something larger then you will be happy. 4th Those that get the smaller motor always end up trying to get more power and spending more money for it then they were saving in MPG's..Not worth it..
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  10. #10
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Norwalk, Ohio
    Blog Entries


    6.0 for the world, the 5.3 doesn't get but maybe 5mpg better and it's weak. You wouldn't be dissappointed, until you pay for the gas guzzler tax and then you might be surprised.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

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