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Tahoe/Yukon engine options

This is a discussion on Tahoe/Yukon engine options within the GM Trucks forums, part of the Vehicle Specific category; And the 2000-2006, is the LM7. As I have found out here....

  1. #21
    Member NaviDyn's Avatar
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    And the 2000-2006, is the LM7. As I have found out here.

  2. #22
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    2007 Cadillac Escalade
    98 Camaro SS, 09 G8 GT

    The 5.3 in the 03-06 tahoes and yukons is plenty strong enough to tow 5K pounds. My mother has an 03 with 5.3 and 3.73 gears and hauled a car trailer with a 5K pound Silverado on it with ease. These engines come with 290 hp (some have 310 hp) and are very easy to mod just like an ls1. They also love a good tune and you would be surprised how much it wakes them up. Good luck.
    1998 Sebring Silver Camaro SS Convertible
    Cammed, Geared, Stalled and soon to be blown via F1-C
    2009 Stryker Blue Pontiac G8 GT
    Kook's 1 7/8's LTH's and catted X, Pypes A/B, Vararam, Tune
    2007 Black Raven Cadillac Escalade
    Vararam, Leveling Kit, 33's

  3. #23
    Member NaviDyn's Avatar
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    Quote Originally Posted by NaviDyn View Post
    I have thought what you do, and was thinking of just switching to the 6.0 and 4L80. I think it can be done with minor fuss.
    As I searched posts here, and for parts and availabilty on google, I found some interesting things.

    I can get an Eagle 402 crank and matching rods for the LQ4 engine. Which are plentiful and cheap on Ebay, when somebody isn't selling a reman that is tuned for profit. I wouldn't get a bare block, and start from scratch. I would use the truck 6.0, 402, L92 heads, and the L76 manifold, and slip it in front of a 4L80E. All at a reasonable cost, and reliable. It will be some time before a build thread.

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    2007 Cadillac Escalade
    98 Camaro SS, 09 G8 GT

    Quote Originally Posted by NaviDyn View Post
    As I searched posts here, and for parts and availabilty on google, I found some interesting things.

    I can get an Eagle 402 crank and matching rods for the LQ4 engine. Which are plentiful and cheap on Ebay, when somebody isn't selling a reman that is tuned for profit. I wouldn't get a bare block, and start from scratch. I would use the truck 6.0, 402, L92 heads, and the L76 manifold, and slip it in front of a 4L80E. All at a reasonable cost, and reliable. It will be some time before a build thread.
    That sounds like a pretty stout combo. When my 6.0 eventually goes, I plan on building (I say plan on because who knows what will be available then) a forged 408 with a TVS 2300 mated to a 6L80E. That should get my 6K pound Denali up and running pretty quick .

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