5.3L To LS1 Swap?

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Colossus

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Alright So I guess I'll go with the 6.0.
Found one on ebay 103k miles out of an 05 escalade, $1,500 + $200 Shipping.
Anyone got a better price than that?

Man, Thats out of a Escalade then that means its a LQ9 instead of a LQ4. Lq4 came in work trucks pretty much. They only put the LQ9 In SS trucks, escalade and stuff like that. That means a higher compression motor which if I rember right was rated a 345hp. Bad ass find for the miles IF it is a LQ9.

---------- Post added at 02:51 PM ---------- Previous post was at 02:43 PM ----------

There are better finds out there but not for the Lq9 really. You can find High mls LQ4 for $500 to $800 if you look hard and can deal w 140 to 160 mls. See I got lucky Im buy a whole truck from my dads work for $500. Its a 2002 2500 reg cab long bed that's all beat up. It has 140mls on it. But I get the 6.0L 4l80e trany and a parts truck out of it.
But that deal is a.... I just got lucky kinda of deal.
 

imi4tth3w

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there is no better really. lq9 is going to have higher compression and have a little bit more power but if you want to look into a forced induction you'll want an lq4 with less compression. lq4 can usually be had for cheaper and they're only slightly less power which can be fixed with tune and small mods.
 

Colossus

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Well there's a little more info to give then just a little different compression. The LQ9 is 10.1 to 10.4 depending on what source you read. Also all LQ9s will ALL come w/ 317 heads (similar as the 243, but with larger 76cc chambers) (243 heads are the heads they put on the 405hp Z06)
Not all LQ4 come w the 317 heads and the comp is only 9.4:1 like a 5.3l.

Either motor will be bad ass in your truck!! A lq9 is just like a 40hp bonus. SUPER CHEVY shows LQ4 w/ 317 heads at 360hp (engine dyno I'm sure) and the LQ9 at 400hp. Read up on it, a lot of good info. Like little things that make them different like having floating pins and stuff like that.

BUT again LQ4 or LQ9 will both be bad ass to have!!!! a lq9 is just like getting a little bonus when you buy.

SUPER CHEVY/ All LSx motors info
http://www.superchevy.com/technical/engines_drivetrain/sucp_0911_ls_engine_performance/viewall.html
 

hoe

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Well there's a little more info to give then just a little different compression. The LQ9 is 10.1 to 10.4 depending on what source you read. Also all LQ9s will ALL come w/ 317 heads (similar as the 243, but with larger 76cc chambers) (243 heads are the heads they put on the 405hp Z06)
Not all LQ4 come w the 317 heads and the comp is only 9.4:1 like a 5.3l.

Either motor will be bad ass in your truck!! A lq9 is just like a 40hp bonus. SUPER CHEVY shows LQ4 w/ 317 heads at 360hp (engine dyno I'm sure) and the LQ9 at 400hp. Read up on it, a lot of good info. Like little things that make them different like having floating pins and stuff like that.

BUT again LQ4 or LQ9 will both be bad ass to have!!!! a lq9 is just like getting a little bonus when you buy.

SUPER CHEVY/ All LSx motors info
http://www.superchevy.com/technical/engines_drivetrain/sucp_0911_ls_engine_performance/viewall.html

X2

The LQ9 has Flat Top pistons, and a shit load more mid to top end power, 93 octane required. Take a Denali (lq4) and a Escalade (lq9) on a trip on the hwy, and see the difference. run them side by side.

Here is a pic, of my Vortec Max (LQ9).
67fa06e7.jpg

Im about to put 6.2 heads on it with Fast & 102mm... thats what you do to make serious power. 525ish

OP you have A load of research to do.
 
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Johny_Vette

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Oh my god :Handshake: Thats a beautiful engine.
Yea I want what you got lol. And Hold up the 6.2 heads fit on the 6.0?
 

hoe

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Oh my god :Handshake: Thats a beautiful engine.
Yea I want what you got lol. And Hold up the 6.2 heads fit on the 6.0?

thanks, and Yes, I am putting 6.2 L92 heads on my 6.0 VMax. New Fast intake, 102mm Throttle Body, and a custom grind cam. It can be done, its just not a simple head swap.
 
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Johny_Vette

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I'd rather stay N/A, Aiming for at least 450 Hp :Handshake: Besides if i turbo it gotta do internals. :p
 
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