C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

LS3 in C5

Thread Tools
 
Search this Thread
 
Old Jul 2, 2009 | 02:30 AM
  #1  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default LS3 in C5

I've been looking for a roller FRC 99' vette.

http://www.jegs.com/p/GM-Performance...27485/10002/-1

What would be required to throw this thing into a C5?

And can Viper spec t56s fit on these cars?
Reply
Old Jul 2, 2009 | 10:09 AM
  #2  
kerryt1's Avatar
kerryt1
Drifting
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2006
Posts: 1,876
Likes: 0
From: Edmond OK
Default

You need some adapters. You need the Lingenfelter converter box (your PCM needs a 24x reluctor wheel vs the LS3 58x), map sensor extension, adapters for the fuel injector harness. My brother just swapped an LS2 shortblock (L92 heads, LS3 manifold) into his LS1 Camaro and it seemed pretty easy...just need the adapters.

As for the transmission, it think the unit itself is a direct swap, but there might be some corvette specific parts you need (input / output shafts, etc).
Reply
Old Jul 2, 2009 | 11:19 AM
  #3  
WKMCD's Avatar
WKMCD
Race Director
15 Year Member
 
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Default

Katech makes an electronic device that allows you to run the 58t reluctor with your PCM so that's not an issue. You will need knock and cam sensor harnesses to match the L92/LS3.

That's about it.
Reply
Old Jul 2, 2009 | 11:37 AM
  #4  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default

how much would all this little stuff cost?

the ls3 intake will work on the car?
Reply
Old Jul 2, 2009 | 11:41 AM
  #5  
grady's Avatar
grady
Melting Slicks
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2000
Posts: 2,722
Likes: 115
From: Phoenix AZ
Default

I would also like to know an approximate full install price. What header would/could be used?
Reply
Old Jul 2, 2009 | 12:27 PM
  #6  
WKMCD's Avatar
WKMCD
Race Director
15 Year Member
 
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Default

Originally Posted by Clutched
how much would all this little stuff cost?

the ls3 intake will work on the car?
Not sure on the cost of the reluctor piece. I don't think it's too bad. The harnesses will run you under $200.

I run and L76 intake which is the same as the LS3.
Reply
Old Jul 2, 2009 | 12:28 PM
  #7  
WKMCD's Avatar
WKMCD
Race Director
15 Year Member
 
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Default

Originally Posted by grady
I would also like to know an approximate full install price. What header would/could be used?
Check your local "good" shops for install coast. I run American Racing 1 7/8 w/ cats and recommend them highly.
Reply
Old Jul 2, 2009 | 12:59 PM
  #8  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default

will the A/C, power steering pump and alternator all transfer form the ls1 setup?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Joe Kucinski
story-2

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

 Verdad Gallardo
story-3

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

 Joe Kucinski
story-4

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

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Jul 3, 2009 | 03:13 PM
  #9  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default

Anyone?
Reply
Old Jul 3, 2009 | 04:24 PM
  #10  
AU N EGL's Avatar
AU N EGL
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Default

is that what that next part is for?

" GM Performance #809-19201327

# LS376/480 Controller Kit Includes all the components required to run your GM Performance Parts crate engine "

$1140
Reply
Old Jul 3, 2009 | 04:37 PM
  #11  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default

I called jegs and they said its just the electrical for it. ECU, Wiring Harness.
Reply
Old Jul 3, 2009 | 06:48 PM
  #12  
WKMCD's Avatar
WKMCD
Race Director
15 Year Member
 
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Default

Originally Posted by AU N EGL
is that what that next part is for?

" GM Performance #809-19201327

# LS376/480 Controller Kit Includes all the components required to run your GM Performance Parts crate engine "

$1140
Tom,

I think that includes electronics to control the fuel injection, spark, etc that you don't need if you're running the crate engine in a modern car. I think if you want to drop it into a 67 Camaro, you'd go that way.
Reply
Old Jul 3, 2009 | 08:44 PM
  #13  
AU N EGL's Avatar
AU N EGL
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Default

Ok Kevin


if some one wants an LS3 for any real performance, we have a thread that in part talks about LS3s over in the Road Racing and Auto-X forum.

in short, add a dry sump.

the New Grand Sport coupe as a LS3 with the LS9 dry sump system.
Reply
Old Jul 3, 2009 | 09:04 PM
  #14  
buoniconti81's Avatar
buoniconti81
Instructor
15 Year Member
 
Joined: Mar 2007
Posts: 235
Likes: 0
From: USA
Default

no offense, but why would you do that? you can get headers and heads/ cam plus a dyno tune and cat back plus vararam for your car and get an easy 400 rwhp.... way more powerful than the ls3..... If you wanna upgrade some things like electric water pump fuel rail and injectors, and msd coils go right ahead and last but not least a 92/92 fast intake....
I bet its more like 425 rwhp with all this and no b/s other than bolt ons then a good dyno tune..... your digging more of a hole buying another motor when the ls1 is just fine! my opinion though.. Good luck
Reply
Old Jul 3, 2009 | 09:36 PM
  #15  
Mark C5's Avatar
Mark C5
Melting Slicks
 
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
Default

Originally Posted by buoniconti81
no offense, but why would you do that? you can get headers and heads/ cam plus a dyno tune and cat back plus vararam for your car and get an easy 400 rwhp.... way more powerful than the ls3..... If you wanna upgrade some things like electric water pump fuel rail and injectors, and msd coils go right ahead and last but not least a 92/92 fast intake....
I bet its more like 425 rwhp with all this and no b/s other than bolt ons then a good dyno tune..... your digging more of a hole buying another motor when the ls1 is just fine! my opinion though.. Good luck
OP stated he's looking for a "roller". Roller = no engine, no trans.

LS1 from GM Performance $6,000 350 HP
LS3 with Hot Cam from GM Perf $7,800 480 HP

That's 130 HP for $1800 pretty good deal.

LS3 has more cubes, bigger heads and a much better intake. Put the same money into both in mods and the LS3 will always be way ahead. No brainer to me.
Reply
Old Jul 3, 2009 | 11:04 PM
  #16  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default

Originally Posted by buoniconti81
no offense, but why would you do that? you can get headers and heads/ cam plus a dyno tune and cat back plus vararam for your car and get an easy 400 rwhp.... way more powerful than the ls3..... If you wanna upgrade some things like electric water pump fuel rail and injectors, and msd coils go right ahead and last but not least a 92/92 fast intake....
I bet its more like 425 rwhp with all this and no b/s other than bolt ons then a good dyno tune..... your digging more of a hole buying another motor when the ls1 is just fine! my opinion though.. Good luck
Well. im sorry but 400rwhp is not way more powerful than the hotcammed ls3.... a stock ls3 vette dynos 395rwhp.... this is hotcammed. so it should dyno about 425rwhp stock, which would put it to atleast 450rwhp with bolt ons and very reliable.

Not to mention it will be more unique than just another built LS1 built C5.
Reply
Old Jul 4, 2009 | 02:00 AM
  #17  
99torchredlb's Avatar
99torchredlb
Pro
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 672
Likes: 22
From: L. B. Ca
Default

Originally Posted by Clutched
Well. im sorry but 400rwhp is not way more powerful than the hotcammed ls3.... a stock ls3 vette dynos 395rwhp.... this is hotcammed. so it should dyno about 425rwhp stock, which would put it to atleast 450rwhp with bolt ons and very reliable.

Not to mention it will be more unique than just another built LS1 built C5.
I agree wish i had the money for a hotcammed ls3
Reply

Get notified of new replies

To LS3 in C5

Old Jul 4, 2009 | 02:34 AM
  #18  
LT1driver's Avatar
LT1driver
Le Mans Master
20 Year Member
 
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
Default

what are the specs on the hot cam ls3???

have not had a ls3 outrun me yet....03ZO6, headers rest stock.
Reply
Old Jul 4, 2009 | 06:19 AM
  #19  
Clutched's Avatar
Clutched
Thread Starter
8th Gear
 
Joined: Jul 2009
Posts: 8
Likes: 0
Default

Originally Posted by LT1driver
what are the specs on the hot cam ls3???

have not had a ls3 outrun me yet....03ZO6, headers rest stock.
...read the description in the link provided
Reply
Old Jul 4, 2009 | 07:20 AM
  #20  
AU N EGL's Avatar
AU N EGL
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Default

Originally Posted by buoniconti81
no offense, but why would you do that? you can get headers and heads/ cam plus a dyno tune and cat back plus vararam for your car and get an easy 400 rwhp.... way more powerful than the ls3..... If you wanna upgrade some things like electric water pump fuel rail and injectors, and msd coils go right ahead and last but not least a 92/92 fast intake....
I bet its more like 425 rwhp with all this and no b/s other than bolt ons then a good dyno tune..... your digging more of a hole buying another motor when the ls1 is just fine! my opinion though.. Good luck
One word: Warranty.

if that is what he wants.

Yes you can build and engine with equal HP, but not for $8,000 you wont.
Reply



All times are GMT -4. The time now is 11:39 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE