Desperately seeking advice regarding L92 VS LS3
08-21-2009, 12:03 PM
#1
Teching In
Thread Starter
Join Date: Aug 2009
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
Desperately seeking advice regarding L92 VS LS3 Hello everyone. I am in a bit of a dilemma at the moment and am seeking some advice if possible please.
The problem I have is this....
I am in the process of having an engine / turbo build done and it is basically finished. I was quoted for an LS3 engine and turbo kit etc. I have since found out from my own research that the engine is in fact an L92 and not an LS3.
I have been reading for the last 4 hours trying to establish whether I am being ripped off and what the main differences are between the 2 engines.
I am after some advice on what I should do as I am ready to cry.
Is the L92 worth less than the LS3 ??
Could anyone please give me some insight into the main differences between them ??
Is the LS3 any better/stronger for a FI application ??
How would you approach the engine builder about this ??
I am sorry for all the questions but as you can probably tell I'm stressing bad after spending almost AU$25K on an LS3 build to find it isn't even an LS3 afterall.
The engine builder has been fantastic and I can't say a bad thing about him but this predicament has me very worried.
Any help you can offer would be appreciated more than you know...
Please heeeelp.....
The problem I have is this....
I am in the process of having an engine / turbo build done and it is basically finished. I was quoted for an LS3 engine and turbo kit etc. I have since found out from my own research that the engine is in fact an L92 and not an LS3.
I have been reading for the last 4 hours trying to establish whether I am being ripped off and what the main differences are between the 2 engines.
I am after some advice on what I should do as I am ready to cry.
Is the L92 worth less than the LS3 ??
Could anyone please give me some insight into the main differences between them ??
Is the LS3 any better/stronger for a FI application ??
How would you approach the engine builder about this ??
I am sorry for all the questions but as you can probably tell I'm stressing bad after spending almost AU$25K on an LS3 build to find it isn't even an LS3 afterall.
The engine builder has been fantastic and I can't say a bad thing about him but this predicament has me very worried.
Any help you can offer would be appreciated more than you know...
Please heeeelp.....
Last edited by LOST IN SPACE; 08-21-2009 at 12:09 PM.
08-21-2009, 12:15 PM
#2
L92 heads push out head gaskets in FI applications.
Here's a good thread about it on YellowBullet.
Here's the link.
http://www.yellowbullet.com/forum/sh...d.php?t=162459
Here's a good thread about it on YellowBullet.
Here's the link.
http://www.yellowbullet.com/forum/sh...d.php?t=162459
08-21-2009, 12:24 PM
#3
L92 heads push out head gaskets in FI applications.
Here's a good thread about it on YellowBullet.
Here's the link.
http://www.yellowbullet.com/forum/sh...d.php?t=162459
Here's a good thread about it on YellowBullet.
Here's the link.
http://www.yellowbullet.com/forum/sh...d.php?t=162459
The L92 and the LS3 use the exact same block/cylinder head with little differences. The Ls3 comes with a hollow intake valve I believe and the L92 can have DOD and/or VVT. They also have different intakes.
It is basically the same motor, just came in an escalade/denali instead of a c6 and has a different name.
08-21-2009, 07:03 PM
#5
Teching In
Thread Starter
Join Date: Aug 2009
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
My question then is this, would you be happy to pay the same amount for an L92 and an LS3 or should I be asking for a few dollars off the bill...
Thanks for the help so far guys...
Thanks for the help so far guys...
08-21-2009, 08:47 PM
#6
depends on what parts went in it. Since they are basically the same like stover said it would depend on what the builder put in it.
Sounds like it's negligable to me.
I's be more concerned with the head gaskets on that style head and why your builder wasn't aware of it. How much power/boost you planning to put to it?
If your builder says it can handle the set up and that's what you're paying for then it's all good IMO.
Just confirm that it'll do what he says it will and look foward to getting it in the car.
Sounds like it's negligable to me.
I's be more concerned with the head gaskets on that style head and why your builder wasn't aware of it. How much power/boost you planning to put to it?
If your builder says it can handle the set up and that's what you're paying for then it's all good IMO.
Just confirm that it'll do what he says it will and look foward to getting it in the car.
08-21-2009, 09:24 PM
#7
Teching In
Thread Starter
Join Date: Aug 2009
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
depends on what parts went in it. Since they are basically the same like stover said it would depend on what the builder put in it.
Sounds like it's negligable to me.
I's be more concerned with the head gaskets on that style head and why your builder wasn't aware of it. How much power/boost you planning to put to it?
If your builder says it can handle the set up and that's what you're paying for then it's all good IMO.
Just confirm that it'll do what he says it will and look foward to getting it in the car.
Sounds like it's negligable to me.
I's be more concerned with the head gaskets on that style head and why your builder wasn't aware of it. How much power/boost you planning to put to it?
If your builder says it can handle the set up and that's what you're paying for then it's all good IMO.
Just confirm that it'll do what he says it will and look foward to getting it in the car.
Power in the future will be 800+rwhp, no too sure on boost levels just yet but in excess of 15psi. I had planned to forge it, stroke it to around 418ci, bigger cam, bigger turbo, NOS, etc but just fear the LS3 may have been a better base to build off.
Trending Topics
08-21-2009, 11:50 PM
#8
Copied from the very top...
Edited July 2007: It is confirmed that the LS3 shares the same cylinder head castings and block casting as the L92 truck engine. The main difference in LS3 complete heads is that they have lighter valves and better valvesprings than standard L92 complete heads.
So if you have bigger valves and better springs then no, it doesn't matter and they cost the same.
08-22-2009, 08:26 AM
#9
Thank you for the reply.
Power in the future will be 800+rwhp, no too sure on boost levels just yet but in excess of 15psi. I had planned to forge it, stroke it to around 418ci, bigger cam, bigger turbo, NOS, etc but just fear the LS3 may have been a better base to build off.
Power in the future will be 800+rwhp, no too sure on boost levels just yet but in excess of 15psi. I had planned to forge it, stroke it to around 418ci, bigger cam, bigger turbo, NOS, etc but just fear the LS3 may have been a better base to build off.
09-02-2009, 07:52 AM
#14
Teching In
Thread Starter
Join Date: Aug 2009
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
