C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

LS7 in a C6

Thread Tools
 
Search this Thread
 
Old Jun 17, 2005 | 07:06 AM
  #1  
sk1mcguire's Avatar
sk1mcguire
Thread Starter
Instructor
 
Joined: Jun 2005
Posts: 223
Likes: 0
From: Lansdale PA
Default LS7 in a C6

Good Morning All!

I'm a relative newcomer to the Corvette world, I just took delivery of my first Corvette last Friday (10JUN05) and it is a beauty. LeMans Blue Metallic, Z51 and 1SB package. Now onto the question....

Would a LS7 fit in a C6 and would the transmission handle the increased torque? I have an automatic just as a postscript.

Thanks in advance for your time and I'm glad to be a member!

Jonathan McGuire
Lansdale, PA
Reply
Old Jun 17, 2005 | 09:31 AM
  #2  
jimman's Avatar
jimman
Le Mans Master
20 Year Member
 
Joined: Nov 1999
Posts: 7,695
Likes: 51
From: Imperial Beach CA
Default

Originally Posted by sk1mcguire
Good Morning All!

I'm a relative newcomer to the Corvette world, I just took delivery of my first Corvette last Friday (10JUN05) and it is a beauty. LeMans Blue Metallic, Z51 and 1SB package. Now onto the question....

Would a LS7 fit in a C6 and would the transmission handle the increased torque? I have an automatic just as a postscript.

Thanks in advance for your time and I'm glad to be a member!

Jonathan McGuire
Lansdale, PA
Two chances, Slim and None
Reply
Old Jun 17, 2005 | 10:07 AM
  #3  
Violet's Avatar
Violet
Le Mans Master
10 Year Member
 
Joined: Jul 2003
Posts: 8,455
Likes: 1
From: Offical CFOT MustangChick Texas
Default

actually the LS7 will "fit" just fine. as for the transmission, esp the '05 C6 A4... you're definitely probably going to need to upgrade the internals in short order.

that being said... why? the LS7 crate motors are NOT going to be cheap... i've heard $10k+. Maybe $15k? then you have to factor in the cost of the ECU reprogramming and all the other associated cost of an engine swap/replacement you'll need to make it work.

for that kinda cash you can rebuild your LS2 to be a monster that will perform better than a "stock" LS7. unless you just want 'bragging rights' to say you have an LS7 swapping one in really makes no sense.

JMHO.
Reply
Old Jun 17, 2005 | 10:14 AM
  #4  
Fredo's Avatar
Fredo
Racer
 
Joined: Feb 2005
Posts: 460
Likes: 0
Default

Originally Posted by Violet
actually the LS7 will "fit" just fine. as for the transmission, esp the '05 C6 A4... you're definitely probably going to need to upgrade the internals in short order.

that being said... why? the LS7 crate motors are NOT going to be cheap... i've heard $10k+. Maybe $15k? then you have to factor in the cost of the ECU reprogramming and all the other associated cost of an engine swap/replacement you'll need to make it work.

for that kinda cash you can rebuild your LS2 to be a monster that will perform better than a "stock" LS7. unless you just want 'bragging rights' to say you have an LS7 swapping one in really makes no sense.

JMHO.
With a head and cam package, headers and tuning you will easily be at the 500 hp range and could do all this for approx $8000. True it will never be a 427, however it will run like one.
Reply
Old Jun 17, 2005 | 01:45 PM
  #5  
sk1mcguire's Avatar
sk1mcguire
Thread Starter
Instructor
 
Joined: Jun 2005
Posts: 223
Likes: 0
From: Lansdale PA
Default

Roger that! I was just wondering as there is so much press and anticipation with the LS7. Motor Trend had a good article covering the assembly and it piqued my interest.

I'm sticking with the LS2!

Thanks - Jonathan
Reply
Old Jun 17, 2005 | 06:47 PM
  #6  
Swancoat's Avatar
Swancoat
Pro
 
Joined: Nov 2004
Posts: 666
Likes: 0
From: Houston TX
Default

I know for a fact that the LS7 will fit in a C6. Go buy a Z06. It's a C6 with the conversion already done, plus a few other goodies thrown in.
Reply
Old Jun 17, 2005 | 08:19 PM
  #7  
cbgpe's Avatar
cbgpe
Drifting
Supporting Lifetime
15 Year Member
 
Joined: Dec 2002
Posts: 1,259
Likes: 9
From: spring valley ny
Default BUY the ZO6

Originally Posted by Swancoat
I know for a fact that the LS7 will fit in a C6. Go buy a Z06. It's a C6 with the conversion already done, plus a few other goodies thrown in.
GOOD ADVISE.....You will never get your money back on the mods,Keep yours stock and trade it in on a ZO6 ...when you can get one
Reply
Old Jun 17, 2005 | 08:51 PM
  #8  
need-for-speed's Avatar
need-for-speed
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2000
Posts: 45,240
Likes: 892
From: Texas
CI 1-4-5-8-9-10 Vet
St. Jude Donor '03 thru '10, '17
Default

It's definitley do-able. The stock tranny and differential may not last though. Depends on how you drive it. I imagine a differential would live longer behind an A4 than a MN6. And there are plenty of tranny builders who can build that A4 to survive 505 HP / 475 TQ.

And just how much would all of this cost you? More than the $20K price spread. It would make a lot more sense to buy the Z06.

The only car that makes sense for dropping in an LS7 would be a C5 - i.e. - pay low 20's for a nice low mileage 2000 model and drop in the "big motor".
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jun 17, 2005 | 09:06 PM
  #9  
crabman's Avatar
crabman
Safety Car
15 Year Member
 
Joined: Jun 2004
Posts: 4,430
Likes: 81
From: Whidbey Island WA
Default

Wouldnt work as a sleeper either since everybody knows any corvette may be packing some extra firepower. Now stick that thing in a new malibu and I bet that catches a few people by suprise.
Reply

Get notified of new replies

To LS7 in a C6





All times are GMT -4. The time now is 12:29 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE