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  1. #1

    Default Goodbye to some of the engines we know and loved?

    From what I heard GM is discontinuing some of there engines that have been around for awhile and replacing them with a different engine family. From what I remember they are stopping production of there 4.3l, 4.8l, 5.3l and there might be another one I can remember, for the 2014 mode year. But they are being replaced by new Ecotec3 engines that use nearly identical displacement but are in no way the same engine. They will be all aluminum engines that will have cylinder cutoff for better fuel efficiency. They are making these engines still in the 4.3l, 5.3l, and 6.2l but have nothing in common with the old engines. Kind of bums me out a little because I was a huge fan of the cast iron 4.3l. But the new engines do seem pretty cool and even the 4.3l engine is supposed to make huge horsepower for its size.

    From what I heard there won't be any 4.8l being made anymore either.

    Anyone else heard about this or have any options?
    1995 C1500 4.3L 2WD. JET TBI Spacer, JET stage 1 chip, 10mm Taylor custom wires, Pulstar Iridium Pulse Plugs.
    260k miles and still going strong...

  2. #2


    You are correct the Vortec engine's are being replaced with new EcoTec small blocks. They will all be aluminum and come in 4.3l, 5.3l and 6.2. each will have significant horse power and torque increases and better MPG than the Vortec engines. We know that the 6.2l will put out about 30-40 more HP and torque than the current one it is rated at about 450 HP and 450 ft lb.

    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:

  3. #3


    Can't argue with lighter and more output ... oh wait, yes you can -- cost.

  4. #4

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


    I say get rid of the AFM Crap maybe add a 7 or 8th Gear to better the MPG's...
    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

  5. #5


    Amen to both of the comments above.

    I'm most excited to see the unveiled specs of the updated 4.3L. GM needs to make something to give the Ford Ecoboost a run for it's money.
    09 Sierra SLT
    - Denali grille, black HALO headlights, smoked tails & brake light, 20% tint, Carbon fiber interior
    - Top Gun Customz 2.5" leveling kit, 305/55/20 Toyo Open Country AT's on GMC 20's
    - K&N 77 series cold air intake, Flowmaster super 10 series exhaust
    Next up: Smoked fog lights

    2000 Silverado Z71
    - 4" body lift, 315/65/16 Mastercraft Courser AT2 tires
    - Stainless steel Excalibur catback exhaust
    - Lots more to come!

  6. #6
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Norwalk, Ohio
    Blog Entries


    4.3----305hp, true story

    I personally didn't buy a new V6 Camaro because of the AFM DOD junk, that is a huge turnoff for me. If that's what the truck market is coming to, then I won't EVER buy another new truck. I will rebuild my 6.0 until It can't be bored out any more.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

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