LS7 Grand Sport
03-02-2016, 05:16 PM
#1
Le Mans Master
Thread Starter
LS7 Grand Sport
This thread has degenerated into nonsense and I want nothing to do with it, but can't nuke it, so just editing. Whatever follows has nothing to do with me.
Last edited by davepl; 04-06-2016 at 07:18 PM.
03-02-2016, 05:41 PM
#2
Could it possible be the tarnished reputation of the LS7 in the corvette comunity?
Specifically the valve drop issue.
As a previous owner of a dropped valve LS7 (09 Z06), I don't think I'd be interested in going down that road again.
JMO
Specifically the valve drop issue.
As a previous owner of a dropped valve LS7 (09 Z06), I don't think I'd be interested in going down that road again.
JMO
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JWingo (03-02-2016)
03-02-2016, 05:44 PM
#3
Drifting
https://www.corvetteforum.com/forums...-625lb-ft.html
Unfortunately this will cost more than a Zo6. But it has to stop being defended that supercharged is for the track. The new grandsport w/ a z07 package and this motor would be the killer. I also don't see any problem with a stock LS7 using an automatic, many swaps have been done.
Unfortunately this will cost more than a Zo6. But it has to stop being defended that supercharged is for the track. The new grandsport w/ a z07 package and this motor would be the killer. I also don't see any problem with a stock LS7 using an automatic, many swaps have been done.
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ManuelCarrillo3 (03-03-2016)
03-02-2016, 06:17 PM
#4
Team Owner
Not 100% sure, but I believe that the LS series motors can not be directly dropped in a car with the LT series motors with some modifications. I think it has to do with motor mount location and maybe the bellhousing bolt lineup).
03-02-2016, 06:17 PM
#5
Le Mans Master
Thread Starter
The LS7 valve issue was akin to the C7Z overheating issue - something that happened to other people but never bothered me. Sucks for people it happened to, but I'm of the firm opinion that whining and worrying about stuff that hasn't happened yet isn't good for you:
“I've lived through some terrible things in my life, some of which actually happened.”
- Mark Twain on Corvette Z06 Overheating Issues
“I've lived through some terrible things in my life, some of which actually happened.”
- Mark Twain on Corvette Z06 Overheating Issues
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03-02-2016, 06:19 PM
#6
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This one needs to be locked.
03-02-2016, 06:23 PM
#7
The LS7 (which is based on the LS series small block) is a GEN IV small block. The current LT (including the LT4) are Gen V. No GM vehicles use the Gen IV small block now. While bore/stoke block are the same, heads, intake manifold are different, plus direct injection and AFM. GM/Chevy is not going to produce a prior generation small block for just one application. Thus no LS7 (unfortunately).
03-02-2016, 06:23 PM
#8
Team Owner
The LS7 valve issue was akin to the C7Z overheating issue - something that happened to other people but never bothered me. Sucks for people it happened to, but I'm of the firm opinion that whining and worrying about stuff that hasn't happened yet isn't good for you:
“I've lived through some terrible things in my life, some of which actually happened.”
- Mark Twain on Corvette Z06 Overheating Issues
“I've lived through some terrible things in my life, some of which actually happened.”
- Mark Twain on Corvette Z06 Overheating Issues
Not that many people have been in a tornado, but if you live where they occur, it's very wise to have a plan of action(and a safe place to go) if you are hit. I've been through two, so I know they happen.
If you have a LS7, it's wise to have a plan of action(I did, as I replaced my heads, before I got hit with a dropped valve).
Not everyone that has a storm shelter has been in a tornado, but at least they are proactive, as are many with LS7's.
Last edited by JoesC5; 03-02-2016 at 06:24 PM.
03-02-2016, 06:28 PM
#9
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The LS7 is a dead duck. It's yesterday's motor and it has no place in today's (or tomorrow's) Corvette. At no point in Corvette's recent history have they have used a previous generation small-block Chevy in one of the models.
Folks have to understand that big cube, high HP, N/A engines are done for. The Z/28 was a limited run car and GM knew not many people were going to buy it (and look: they didn't). I'll bet the number of GSs they sell in one year overshadows the Z/28's entire run.
Remember: this car in its current form has to last the entirety of the C7 line, however long that is. So even if the LS7 could meet today's very strict emissions standards, will it be able to by the end of the C7's run? Not likely. Further, a new engine under the hood of the car will require expensive recertification for emissions and FE. They have to do it.
Why spend all that money on yesterday's motor?
Folks have to understand that big cube, high HP, N/A engines are done for. The Z/28 was a limited run car and GM knew not many people were going to buy it (and look: they didn't). I'll bet the number of GSs they sell in one year overshadows the Z/28's entire run.
Remember: this car in its current form has to last the entirety of the C7 line, however long that is. So even if the LS7 could meet today's very strict emissions standards, will it be able to by the end of the C7's run? Not likely. Further, a new engine under the hood of the car will require expensive recertification for emissions and FE. They have to do it.
Why spend all that money on yesterday's motor?
03-02-2016, 06:31 PM
#10
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BWFitz (04-01-2016)
03-02-2016, 06:57 PM
#12
Since I'm talking about the current Z06 body with the old Z06 motor, I figured this made sense in the Z06 forum:
Clearly (to me, anyway) the GS should have had the LS7.
Does anyone know -why- they couldn't use the LS7? Gas guzzler doesn't matter (the A8 already has it in the Z06) and they make so few of them that I doubt CAFE averages are a big deal.
If it were emissions, I doubt the Z/28 would have been possible last year.
So what, then, kept the LS7 out of the GS? It would have made a lot more sense to me. Maybe the cam is too much for the A8? I can guess as well as anyone, just wondering if someone has read something from GM along the way.
Clearly (to me, anyway) the GS should have had the LS7.
Does anyone know -why- they couldn't use the LS7? Gas guzzler doesn't matter (the A8 already has it in the Z06) and they make so few of them that I doubt CAFE averages are a big deal.
If it were emissions, I doubt the Z/28 would have been possible last year.
So what, then, kept the LS7 out of the GS? It would have made a lot more sense to me. Maybe the cam is too much for the A8? I can guess as well as anyone, just wondering if someone has read something from GM along the way.
03-02-2016, 07:04 PM
#13
I'm surprised anyone would want to see the LS7 in any C7.
03-02-2016, 07:16 PM
#14
Team Owner
03-02-2016, 07:28 PM
#15
Burning Brakes
Not that many people have been in a tornado, but if you live where they occur, it's very wise to have a plan of action(and a safe place to go) if you are hit. I've been through two, so I know they happen.
If you have a LS7, it's wise to have a plan of action(I did, as I replaced my heads, before I got hit with a dropped valve).
Not everyone that has a storm shelter has been in a tornado, but at least they are proactive, as are many with LS7's.
If you have a LS7, it's wise to have a plan of action(I did, as I replaced my heads, before I got hit with a dropped valve).
Not everyone that has a storm shelter has been in a tornado, but at least they are proactive, as are many with LS7's.
03-02-2016, 07:31 PM
#16
Le Mans Master
:agree: While a great engine there were real issues with the LS7. It has a tarnished reputation with people like me who want a good night's rest not worrying about catastrophic engine failure. One of the main reasons for the phenomenal success of the C6 GS.
03-02-2016, 07:33 PM
#17
Le Mans Master
The LS7 is a dead duck. It's yesterday's motor and it has no place in today's (or tomorrow's) Corvette. At no point in Corvette's recent history have they have used a previous generation small-block Chevy in one of the models.
Folks have to understand that big cube, high HP, N/A engines are done for. The Z/28 was a limited run car and GM knew not many people were going to buy it (and look: they didn't). I'll bet the number of GSs they sell in one year overshadows the Z/28's entire run.
Remember: this car in its current form has to last the entirety of the C7 line, however long that is. So even if the LS7 could meet today's very strict emissions standards, will it be able to by the end of the C7's run? Not likely. Further, a new engine under the hood of the car will require expensive recertification for emissions and FE. They have to do it.
Why spend all that money on yesterday's motor?
Folks have to understand that big cube, high HP, N/A engines are done for. The Z/28 was a limited run car and GM knew not many people were going to buy it (and look: they didn't). I'll bet the number of GSs they sell in one year overshadows the Z/28's entire run.
Remember: this car in its current form has to last the entirety of the C7 line, however long that is. So even if the LS7 could meet today's very strict emissions standards, will it be able to by the end of the C7's run? Not likely. Further, a new engine under the hood of the car will require expensive recertification for emissions and FE. They have to do it.
Why spend all that money on yesterday's motor?
Last edited by b4i4getit; 03-02-2016 at 07:34 PM.
03-02-2016, 07:38 PM
#18
Leeds.io
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I guess you never heard of the Hellcat. There does not seem to be a problem selling those cars. The reality is that GM could offer the LS7 if they really wanted to. But since the LT1 is so firmly entrenched in the C7 DNA there would be no reason to add to the build complexity.
03-02-2016, 07:43 PM
#19
Team Owner
Not sure this topic would even be discussed had GM figured out how the squeeze 500hp out of the LT1.
03-02-2016, 07:49 PM
#20
Melting Slicks
