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    VWVortex


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    Thread: GM's 5.3 vs. 6.0/6.2

    1. 02-23-2008 04:17 PM #1
      Concerning one model earlier and the newest style SUV's, what the difference between GM's regular 5.3 or the 6.0/6.2 (old denali and newer denali) besides the obvious power and torque. Whats the mpg difference also?

    2. 02-23-2008 04:36 PM #2
      I know the HP and TQ is up on the bigger engine, but what other differences are there as far as pros and cons are there?

    3. 02-23-2008 06:57 PM #3
      anyone?

    4. 02-23-2008 07:00 PM #4
      Quote, originally posted by caliboy@heart »
      anyone?

      The 6.0 and 6.2 do NOT have AFM.

      the 5.3 is currently attatched to a 4 sped, the 6.0/6.2 a 6 spd.

      thats the MAIN difference. but honestly, PLEASE consider the lambda vehicles if you havent already... they are as large as you need, no joke... just look at them too.

      Quote Originally Posted by Chris Stack View Post
      Makes me proud to be an American in some perverse way. **** your terrorist, I've a honey boo boo outside.

    5. 02-23-2008 07:03 PM #5
      I dont know if its still the case today, but pre-07 5.3's used the 4L60 trans which used to go out fairly common. I would say get the 6.0/6.2 just for the better trans.

    6. 02-23-2008 07:06 PM #6
      I know in my other post you said try the lamda platform. can you list the vehicles in this platform? thanks dude!

    7. 02-23-2008 07:10 PM #7
      Buick Enclave, GMC Acadia, Saturn Outlook.

      The difference is that the Lambda platform is transverse engine, unitized bodyshell, and uses the 3.6 high-feature V6. Much, much better fuel consumption, and they are a lot nicer to drive.

      The V8 full-frame truck-based SUV's are only worth considering if you are towing 5000 lbs plus.


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      02-24-2008 10:28 PM #8
      Quote, originally posted by GoFaster »
      Buick Enclave, GMC Acadia, Saturn Outlook.

      The difference is that the Lambda platform is transverse engine, unitized bodyshell, and uses the 3.6 high-feature V6. Much, much better fuel consumption, and they are a lot nicer to drive.

      The V8 full-frame truck-based SUV's are only worth considering if you are towing 5000 lbs plus.

      IMO that's what it really amounts to - towing and/or heavy work duty as the chassis on things like these 'trucks' are STOUT.

      It's not to say the Lambdas (or similar) are pitiful... they just weren't designed for that duty. They're actually for the people who like the space of the large trucks, but not the ride/mpg/etc., which are less due to... physics.

      GM will be ramping up production of the 6L80E at its 3rd site Toledo, OH in order to phase the 6speeds into broader uses this year. If you can wait... you might be able to get one in a Chevy.


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      02-24-2008 10:32 PM #9
      Quote, originally posted by NoMoreHonduh »
      but pre-07 5.3's used the 4L60 trans which used to go out fairly common.

      I'm guessing that by saying "go out fairly common", you mean that they tend to fail. That couldn't be further from the truth.


    10. 02-24-2008 11:07 PM #10
      the bigger engines make more power, and with the 6 speed auto they get about the same mpg as the 5.3. makes going for the big engine easy to justify to yourself

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      02-24-2008 11:35 PM #11
      if i'm not mistaken isn't the chevy lambda getting a 3.9?

      ps- i tow ~4000 with my saturn with my friends and gear in the car. get the smallest motor you need, no need for excess


      Modified by qwikz28 at 8:36 PM 2-24-2008


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      02-24-2008 11:39 PM #12
      Quote, originally posted by qwikz28 »
      if i'm not mistaken isn't the chevy lambda getting a 3.9?

      Modified by qwikz28 at 8:36 PM 2-24-2008

      No its getting a 1.8T

      Quote, originally posted by qwikz28 »

      ps- i tow ~4000 with my saturn with my friends and gear in the car. get the smallest motor you need, no need for excess


      Modified by qwikz28 at 8:36 PM 2-24-2008

      I'd rather have more than I need than "just enough" and be the guy who couldn't stop going down the hill.


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      02-24-2008 11:45 PM #13
      Quote, originally posted by Lawl Master »

      No its getting a 1.8T

      I'd rather have more than I need than "just enough" and be the guy who couldn't stop going down the hill.

      thanks for your input

      to the OP- if you care, the 6.2 motor shares most engine components with the ls3. its a pretty intense motor and it loves mods.


      Modified by qwikz28 at 8:47 PM 2-24-2008


    14. 02-24-2008 11:52 PM #14
      Quote, originally posted by qwikz28 »
      if i'm not mistaken isn't the chevy lambda getting a 3.9?

      ps- i tow ~4000 with my saturn with my friends and gear in the car. get the smallest motor you need, no need for excess


      Modified by qwikz28 at 8:36 PM 2-24-2008

      no 3.9L for the lambdas, the 3.6 DI engine will be in them in a year or 2. which will give it better FE and better HP

      Quote Originally Posted by Chris Stack View Post
      Makes me proud to be an American in some perverse way. **** your terrorist, I've a honey boo boo outside.

    15. 02-25-2008 11:14 AM #15
      In our testing, the old 6.0-liter/4-speed auto was a thirsty combo.

      A 2004 Yukon Denali got about 10.0 mpg in our care.

      Things have gotten much better since. Our long-term 2007 Tahoe (5.3/4-speed auto) averaged 14.1 mpg over the course of a year.

      A recent 2008 Yukon Denali XL (6.2/6-speed auto) got a not-dismal 15.5 mpg over about 500 miles of testing.


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