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Superfly
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Discussion Starter · #1 ·
I have a bit of a line on an aluminum block 5.3 out of a Trailblazer. Desirable motor or not? Enough go factor or wait till I find a 6.0 motor? This will be going into a big and heavy wheeler that will likely be running 44" or possibly larger tires. Main love is snow wheeling.
 

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Sounds undersize for the application. That sounds like big block or deisel territory.

Why not stick with something generic like a 454?
 

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5.3 is a great motor, but if you wanna go heavy and big tires, go for the 6 liter. more torque. also has lots of aftermarket support, such as becoming a 6.7 stroker
 

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BAHAHAHAHAHAHAHAHA

I know where you can get a 6.2L or if you act fast an 8.1L :clown

There is a mess of 6.0s there Wil. LQ4s are a dime a dozen and there is a 2nd LQ9 in the yard too. Just don't touch mine :p
 

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Superfly
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Discussion Starter · #5 ·
I did a fair bit of reading on a few chev motor forums and pretty much what has been said here and what I have been hearing is that the 5.3 is a bit small and better go with the 6.0. My rig is such a fat bastard that I really liked the thought of aluminum motor.
 

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It comes down to driving style I think. If you want to do the high RPM attacks on snow drifts Tom style then a little extra never hurts :*******

The 5.3 has great bang for the buck. Stock it's going to feel like twice the motor the 4.3 is and the iron block isn't a lot heavier. With a cam swap you can pickup 100HP pretty easily and if thats not enough you can stroke it etc.

The 6.0 weighs less than my TBI 350 did and with headers and a tune it will easily top 400HP. For the difference in cost I'd go 6.0. My thinking is that with stock internals you can put out as much HP as a 5.3 with a cam. With mods you can see 500HP easily. Weight is no different than the 5.3. With an iron block and aluminum heads, plastic intake, headers, etc the motor can't be more than 100lbs heavier than your 4.3 That extra 100lbs will double your power output and then some.
 

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Superfly
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Discussion Starter · #7 ·
My thinking is that with stock internals you can put out as much HP as a 5.3 with a cam. With mods you can see 500HP easily.
that sold it for me! I'm pretty sure I will need 500HP down the road :) Geez I remember how happy I was when the 4.3 went in...damn you Tom!
 

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Superfly
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Discussion Starter · #8 ·
ahhh....I just did some reading about the L92 motor Jon, bummer that it was buggered and you couldn't buy it.
 

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ahhh....I just did some reading about the L92 motor Jon, bummer that it was buggered and you couldn't buy it.
Yeah I'd really like to make that work but between the damage to the motor and the fact that it's already stripped and on a pallet we just couldn't figure out how to make it work. Too hard to gather everything I needed. The LQ9 I'm interested in is complete in an '05 Escalade so I can pull everything at once and from the same truck.
 

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SNOWMAN
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baaa haaaa lmao, just go the 6 ltr wil and be done with it.

and johnny, i remember not that long ago that the 4.3 is all u will ever need. my how things have changed
 

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Superfly
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Discussion Starter · #12 ·
hey Wil if you cant use the 5.3 I could
I pm'd you Indir's phone number Johnny. I told him you would be calling him.
 

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Superfly
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Discussion Starter · #14 ·
big block! and what 44s are you going to run?
After seeing some of the rigs at the mud drags I like the thought of it....only problem is big blocks are hard fits in Toys and I'm going to reduce the overall weight of the truck as well. Trying to run 46" Baja Claws....not sure if that is going to happen yet.
 

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Superfly
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Discussion Starter · #15 ·
A bit of junkyard motor porn for everyones entertainment

5.3 aluminum block LM4



6.0 LQ9...I believe this one is spoken for by someone building a buggy on the board ;-)



This one is also in an Escalade pickup, but I think it's an 6.0 LQ4

 

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6.0L, Curty actually likes the low end grunt of his iron block 6.0L over the LS1 even. I ran an LQ9 3/4 ton for a while. Even towed two buggies to Moab with it. You'll be surprised at the power that motor will make. Add a tune and a cam and you'll be very happy for years to come.

Are the heads screwed on that L92? They'd work perfect on my LS2.
 

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Superfly
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Discussion Starter · #17 ·
Are the heads screwed on that L92? They'd work perfect on my LS2.
They are totally buggered, there is nothing good on that motor at all, as a matter of fact I don't think that motor even exists. ;-)
 

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After seeing some of the rigs at the mud drags I like the thought of it....only problem is big blocks are hard fits in Toys and I'm going to reduce the overall weight of the truck as well. Trying to run 46" Baja Claws....not sure if that is going to happen yet.

they only make the claw in a 20" now i think no 15s or 16s. and you want as much sidewall as possible..the boys run boggers and claws at camp this year its seemed like boggers did better. id say grooved boggers
 

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Well is there any L92 sitting there that have good heads with no dibs on them?
 
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