What is LSX?
10-21-2010, 01:47 AM
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What is LSX? Hi guys,
Im new to the forum and a little unsure where to post my questions. They all pertain to an LSX crate that I would like to put in a late model escalade. I had a repair shop seize my LQ9 and I'd like a bit more power. I need to know if the swap is possiable with minimal modifacation. I would like to run the stock ECM and fuel injection. I don't know if my ECM could handel the extra displacement. I belive it would be going from a (364 6.0L) to a (376 6.2L). I could buy a programer to flash the fuel map if I need bigger injectors to handel the duty cycle. I also found a piggy back computer to convert the 54X reluctor wheel to the stock 28X reading. I'm pretty sure my truck intake will not work either, but I think I can get a F.A.S.T. Intake to fix that issue. I just need the truck to pass emissions and not throw DTC codes. Any help would be greatly appreciated. I've called the GMPP dealer in my town and no one can answer my questions. If this is the wrong place to post this question please let me know. Oh yeah, it's a 2003 escalade AWD with the LQ9 6.0L. Thanx, Paul.
Im new to the forum and a little unsure where to post my questions. They all pertain to an LSX crate that I would like to put in a late model escalade. I had a repair shop seize my LQ9 and I'd like a bit more power. I need to know if the swap is possiable with minimal modifacation. I would like to run the stock ECM and fuel injection. I don't know if my ECM could handel the extra displacement. I belive it would be going from a (364 6.0L) to a (376 6.2L). I could buy a programer to flash the fuel map if I need bigger injectors to handel the duty cycle. I also found a piggy back computer to convert the 54X reluctor wheel to the stock 28X reading. I'm pretty sure my truck intake will not work either, but I think I can get a F.A.S.T. Intake to fix that issue. I just need the truck to pass emissions and not throw DTC codes. Any help would be greatly appreciated. I've called the GMPP dealer in my town and no one can answer my questions. If this is the wrong place to post this question please let me know. Oh yeah, it's a 2003 escalade AWD with the LQ9 6.0L. Thanx, Paul.
10-21-2010, 04:01 AM
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^lol as funny as that is. on the helpfull side: an "LSX" motor is what you call any motor in the ls series that has been bored or modified to another dispalcement, making it no longer an "ls1, ls2, ls3" etc. Just kind of a general term for a worked over ls motor.
*on a side note that LQ9 6.0 motor can be HEAVILY worked over. your kinda stepping down to an ls1, your loosing dispalcement, and you will find many people swap that block into a fbody as a solid stroker upgrade. You can run the exact same heads (if not bigger on the 6.0, as you do on an ls1, same cam, same intake etc).
do some reasearch, the search button is your friend. you can turn that 6.0 into a 408 for minimal work, and make lots more power for the money than buying a 5.7 block and building that.
My suggestion, but a 408 rotating assembly from a vendor here, tsp, etc, etc, and get that 6.0 block to a machine shop and cleaned up and build that as you have a very very efficient platform to begin with. depending on your head and cam setup, intake, etc. you can make between high 400's and mid 500rwhp.
*on a side note that LQ9 6.0 motor can be HEAVILY worked over. your kinda stepping down to an ls1, your loosing dispalcement, and you will find many people swap that block into a fbody as a solid stroker upgrade. You can run the exact same heads (if not bigger on the 6.0, as you do on an ls1, same cam, same intake etc).
do some reasearch, the search button is your friend. you can turn that 6.0 into a 408 for minimal work, and make lots more power for the money than buying a 5.7 block and building that.
My suggestion, but a 408 rotating assembly from a vendor here, tsp, etc, etc, and get that 6.0 block to a machine shop and cleaned up and build that as you have a very very efficient platform to begin with. depending on your head and cam setup, intake, etc. you can make between high 400's and mid 500rwhp.
It can also be very expensive and hard to cure...
10-22-2010, 01:09 PM
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10-22-2010, 02:48 PM
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10-03-2011, 05:10 PM
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This is a cut and paste from another site but there is actually an lsx engine though I agree that lsx just means any of the ls style engines.
The LS7.R and the LSX are two all-out race engines in the family. Both blocks are both based on the production LS7 engine, but their biggest difference are the material used for casting the block. The LS7.R is aluminum while the LSX is a cast iron. Both are designed for serious horsepower and have proved to be real winners - the LSX block having showed it can support over 2,000 hp in forced induction applications. The LS7.R was developed for Grand Am racing and is not for sale. The C5R block uses many of its design features and is for sale through GM Performance Parts.
The LS7.R and the LSX are two all-out race engines in the family. Both blocks are both based on the production LS7 engine, but their biggest difference are the material used for casting the block. The LS7.R is aluminum while the LSX is a cast iron. Both are designed for serious horsepower and have proved to be real winners - the LSX block having showed it can support over 2,000 hp in forced induction applications. The LS7.R was developed for Grand Am racing and is not for sale. The C5R block uses many of its design features and is for sale through GM Performance Parts.
07-08-2012, 05:38 PM
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Intresting thing about the LSX block is that GM actually spent time with Warren Johnson,(NHRA ProStock Drag Racer) probably back when he was being sponsored by them to help them develop this block.
It is a pretty stout piece for sure.
It is a pretty stout piece for sure.
