Worth it to swap a LS into a 90 Suburban ?

Discussion in 'High Tech Retrofits' started by rscamaro73, Jun 4, 2011.

  1. rscamaro73

    rscamaro73 Administrator Staff Member

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    Striking fear and destroying the enemy
    I'm kinda looking at these earlier 'burbs....and since I'm trying to add to the 'mpg' , I was thinking of a stock(ish) LS1 and 4L60E swap.

    No, I don't have one, but I'm looking, and I've found a few less than $1K....now to get a low mileage motor & trans lined up...

    Anyone heard of this being done and can point me to that area for research ?

    I'd LIKE to get a 2000-2002 Suburban, but pricing is up above my current 'cash fund' for it. If I did that I'd HAVE my 'LS' engine...lol.

    Thanks. And no, I really don't want to keep bothering with a TBI engine....although I might have to for a short (or long) while.
     
  2. Knuckle Dragger

    Knuckle Dragger Mayor of Simpleton Staff Member Lifetime Gold Member

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    It will take you a long time to offset the cost of the swap with fuel savings. My buddy put an LS in his 89 pickup. Went right in. He notched the frame for the compressor. He had a hard time getting rid of the belt harmonics with the relocation kits.
     
  3. Aceshigh

    Aceshigh Veteran Member Lifetime Gold Member

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    It won't be worth doing the swap if MPG savings is your goal.
    Do the math.

    I was checkin into duramax swaps into a suburban myself.
    Seems like a better choice IMO
     
  4. Off Duty

    Off Duty Member

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    He's right.
    A Duramax or Cummins, either one would be a better choice in the long haul.
    The higher fuel economy would offset the cost much quicker, but it's still going to take a while.
    you could convert to WVO or bio-fuel and save even more, offsetting the cost that much quicker.

    The old burbs are :cool:
     
  5. BondoSpecial

    BondoSpecial Veteran Member Lifetime Gold Member

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    "worth" is in the eye of the beholder. Sounds like a lot of time, effort, and cost, for a 1990 vehicle. But look at my multicolored truck that I swapped over to improved but outdated multiport EFI. I have way more into it than it's worth but I like it.
     
  6. Off Duty

    Off Duty Member

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    I agree.
    That's in part what drives the aftermarket industry:)
    It's all about individual tastes.

    I think Ace and myself were responding to this part of his post:
    .

    It's hardly ever worth the cost to swap for fuel economy alone.
    If there are other reasons, and better economy comes as part of it, then it's all good.

    rscamaro73:
    Here are a few places you might search for information:
    http://www.gmtruckclub.com/forum/forumdisplay.php?17555-Chevy-SUV-Forum

    http://coloradok5.com/forums/forumdisplay.php?f=31

    Just like Nasty for the Camaro, these places can be a wealth of info for the burb lovers.:cool:
    (just be aware that they're nowhere near as active as this site. Might just want to use the search function).
     
    Last edited: Jun 5, 2011
  7. BondoSpecial

    BondoSpecial Veteran Member Lifetime Gold Member

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    Understood. If practicality is what you're after, buy a vehicle that already does what you require. Building vehicles insn't at all practical or cost effective. But it is fun.
     
  8. KansasTwister

    KansasTwister Veteran Member Lifetime Gold Member

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    ck5 not active? Hardly, and have a few guys doing the lsx swaps in trucks.

    I must ask, why ls1? why not a 5.3 swap? Its pretty easy to swap in. Since you already have a 1990, you have the right fuel tank and sender and also the gauge cluster (1990-1991 have an electric vss speedometer). You need to put a tpi fuel pump in but thats no biggy. Use a vette regulator with a single fuel line up front and you'll be set. But if you have a good tbi motor in there why bother? Square bodys are pretty easy to swap lsx's into.
     
  9. KansasTwister

    KansasTwister Veteran Member Lifetime Gold Member

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  10. Aceshigh

    Aceshigh Veteran Member Lifetime Gold Member

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    One guy I know on the 442 forums did a 5.3L swap for just $2200 total.
    That included a Jeep steering box upgrade.

    I wanted better gas mileage, which I got, but it will NEVER offset the cost
    because I went off half cocked buying everything under the sun for my 1st swap.
    2nd one will be cheaper, but not anywhere near as cheap as his was.

    For my 2nd gen swap, I'd have to go on Power Tour the entire trip for 20 years plus
    use it as my daily driver to even get close to making it even for the MPG savings. LOL

    UNLESS .....you have 100% of the skills needed to do it. :D
    The less aftermarket parts you have to buy the cheaper it is.

    That's usually what kills us.
    Check out this 1966 Nova with a Duramax and twin turbo's.
    http://www.ls1tech.com/forums/conve...-66-nova-wagon-twin-turbo-duramax-diesel.html
    [​IMG]
     
    Last edited: Jun 5, 2011

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