LS3 or LS7
Race Director
Joined: Jul 2007
Posts: 11,467
Likes: 8
From: 972 and 405
You are here to learn, huh? On an internet forum? If a professional opinion is what you desire, then why don't you do yourself a favor, and pick up the phone. Talk to the experts at A&A, LG, England Green, ECS, etc. That does not mean post within this forum, and make a shout out for them to reply. It means you actually and actively pursue the knowledge you desire. Are you willing to do that, or would you rather just repeat what you think is true, from this forum, LS1Tech, etc?
-Alex
Thread Starter
Intermediate
Joined: May 2011
Posts: 28
Likes: 0
From: Texarkana TX
You guys got any thoughts outside of the FI power plants? Just looking for NA engine info. I do know about the issues with #7. I thought a good tune would take care of this issue???
Race Director
Joined: Jul 2007
Posts: 11,467
Likes: 8
From: 972 and 405
Anyway since there is no way to source who did the work prior to purchasing the car, I honestly would still feel safe and assume it was a bad tune previously. There are plenty of high hp NA anf FI LS1/6 cars running around. Those cars are built for the application and can go the distance. Contact Anthony at LG, he can definitely give you some further insight to which block to go to. Honestly though an LS2/3 is still a good choice and will offer more discplacement but a few things need to be changed over to run that engine in a C5 chassis.
-Alex
Thread Starter
Intermediate
Joined: May 2011
Posts: 28
Likes: 0
From: Texarkana TX
Again sorry for your issues. I'm just going to bow out of the argument with the other guy instead of clutter the thread.
Anyway since there is no way to source who did the work prior to purchasing the car, I honestly would still feel safe and assume it was a bad tune previously. There are plenty of high hp NA anf FI LS1/6 cars running around. Those cars are built for the application and can go the distance. Contact Anthony at LG, he can definitely give you some further insight to which block to go to. Honestly though an LS2/3 is still a good choice and will offer more discplacement but a few things need to be changed over to run that engine in a C5 chassis.
-Alex
Anyway since there is no way to source who did the work prior to purchasing the car, I honestly would still feel safe and assume it was a bad tune previously. There are plenty of high hp NA anf FI LS1/6 cars running around. Those cars are built for the application and can go the distance. Contact Anthony at LG, he can definitely give you some further insight to which block to go to. Honestly though an LS2/3 is still a good choice and will offer more discplacement but a few things need to be changed over to run that engine in a C5 chassis.
-Alex
Thanks for the info Alex.
Race Director
Joined: Jul 2007
Posts: 11,467
Likes: 8
From: 972 and 405
Hey Rob, also try calling here to get another voice.
http://21stcenturymusclecars.com/
Like LGM, they are also a forum vendor and well known in the area. Let us know what you find out
-Alex
http://21stcenturymusclecars.com/
Like LGM, they are also a forum vendor and well known in the area. Let us know what you find out
-Alex
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Hey guys. This is a great forum that has been created, ton of really good information. Unfortunately I am at now in need of some advise on new engine build.
I have a 2003 Z06/ls6 that had some upgrades at the time I purchased the car. 215 ET Performance heads, long tube headers, big cam (do not have grind card), underdrive pulley, dyno tune approx. 550hp at crank.
A missing chunk of #7 piston is the cause of this new engine build. After tearing down, I found 2 cracks in the cylinder wall.
My mission is to replace with something more durable. Would the ls3 or ls7 be a better choice compared to just replacing the ls6? All forged of course. I would prefer to reuse all upgraded parts listed. Does anyone know if it that is possible?
Any advice would be appreciated.
I have a 2003 Z06/ls6 that had some upgrades at the time I purchased the car. 215 ET Performance heads, long tube headers, big cam (do not have grind card), underdrive pulley, dyno tune approx. 550hp at crank.
A missing chunk of #7 piston is the cause of this new engine build. After tearing down, I found 2 cracks in the cylinder wall.
My mission is to replace with something more durable. Would the ls3 or ls7 be a better choice compared to just replacing the ls6? All forged of course. I would prefer to reuse all upgraded parts listed. Does anyone know if it that is possible?
Any advice would be appreciated.
Create LS6 most durable of the LSx engines. Not the power you had, but had the durability you asked for
Thread Starter
Intermediate
Joined: May 2011
Posts: 28
Likes: 0
From: Texarkana TX
Decided to go with the ls6 stroker 383. Installed and dyno 480rwhp. Anthony at LGM took care of the tune. Can't say enough good about LGM, good group of guys. Should be ready for trip to MSR Cresson first weekend in February.
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
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Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Man, you are right. All the shops have stopped selling the kits, and all the shops have stopped installing superchargers on C6Z06's. They are blowing up left and right...............just my fantasy I guess.
Vortech and Procharger.....take note ! LS7's are blowing up
........stop making compatible SC's immediately !
Vortech and Procharger.....take note ! LS7's are blowing up
........stop making compatible SC's immediately !Last edited by David426; Dec 27, 2011 at 11:00 PM.
Race Director
Joined: Jul 2007
Posts: 11,467
Likes: 8
From: 972 and 405
