Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

ls3

Thread Tools
 
Search this Thread
 
Old Sep 14, 2008 | 04:06 AM
  #1  
massillongoat's Avatar
Thread Starter
TECH Enthusiast
iTrader: (3)
 
Joined: Apr 2008
Posts: 552
Likes: 0
From: massillon,oh
Default ls3

pro and cons of the ls3....I have a buddy thinking of purchasing and ls3....
ls3 swap in an ls1 camaro in the future
Reply
Old Sep 14, 2008 | 09:43 AM
  #2  
Robin L's Avatar
LS1Tech Sponsor
 
Joined: Feb 2006
Posts: 1,170
Likes: 1
From: Rockfield Kentucky
Default

Haha, cons.....there are no cons.

Hmmm, with a cam you can make close to 500 horsepower. Oh yeah the top cam gear will need to be changed to a 3 bolt from the single bolt that they use now.

You will not be able to run a 1x gear in an LS3 because of the single bolt. What a great excuse to install a cam while your changing the cam gear.

You will need the typical harnesses for the cam pickup, injectors and knock sensor. Do a search there is a good post abou the changes that you will need to perform.

Robin
Reply
Old Sep 14, 2008 | 10:11 AM
  #3  
shady milkman's Avatar
Teching In
 
Joined: Jul 2007
Posts: 45
Likes: 0
Default

Originally Posted by Robin L
Haha, cons.....there are no cons.

Hmmm, with a cam you can make close to 500 horsepower. Oh yeah the top cam gear will need to be changed to a 3 bolt from the single bolt that they use now.

You will not be able to run a 1x gear in an LS3 because of the single bolt. What a great excuse to install a cam while your changing the cam gear.

You will need the typical harnesses for the cam pickup, injectors and knock sensor. Do a search there is a good post abou the changes that you will need to perform.

Robin
wow ..you hit everything on the mark...i have nothing to add..
Reply
Old Sep 14, 2008 | 10:23 AM
  #4  
99blancoSS's Avatar
Banned
iTrader: (115)
 
Joined: Feb 2005
Posts: 9,892
Likes: 3
From: ST Helens, OR
Default

I agree with Robin, no cons at all. Bigger is always better
Reply
Old Sep 14, 2008 | 10:52 AM
  #5  
See5's Avatar
FormerVendor
iTrader: (53)
 
Joined: Dec 2002
Posts: 874
Likes: 1
From: Hobart, WI
Default

24x reluctor
Reply
Old Sep 15, 2008 | 07:21 AM
  #6  
drain89's Avatar
TECH Enthusiast
15 Year Member
iTrader: (13)
 
Joined: Nov 2006
Posts: 707
Likes: 1
From: Right across the river from Huntington, WV
Default

Instead of paying an arm and a leg for an ls3 crate motor, I'll sell you my zero mile L92 crate motor and swap parts for one hell of a deal.
Reply
Old Sep 15, 2008 | 07:54 AM
  #7  
njc.corp's Avatar
TECH Resident
 
Joined: Jun 2007
Posts: 952
Likes: 0
Smile

Originally Posted by Robin L
Haha, cons.....there are no cons.

Hmmm, with a cam you can make close to 500 horsepower. Oh yeah the top cam gear will need to be changed to a 3 bolt from the single bolt that they use now.

You will not be able to run a 1x gear in an LS3 because of the single bolt. What a great excuse to install a cam while your changing the cam gear.

You will need the typical harnesses for the cam pickup, injectors and knock sensor. Do a search there is a good post abou the changes that you will need to perform.

Robin
robin- just cam alone and the usual springs etc etc?

Thanks

Nick--
Reply
Old Sep 15, 2008 | 08:18 AM
  #8  
Robin L's Avatar
LS1Tech Sponsor
 
Joined: Feb 2006
Posts: 1,170
Likes: 1
From: Rockfield Kentucky
Default

Originally Posted by njc.corp
robin- just cam alone and the usual springs etc etc?

Thanks

Nick--
The GMPP LS376/480 is an LS3 with a GM Performance Parts Hot Cam installed.

The engine is part number 19171224

This engine makes 480 Horsepower. The LS3 has the LS6/LS2 yellow valve springs already from the factory.
As you know this cam isn't that radical.
I am getting ready for some testing on the dyno soon.

I will running the following,

L92 with a Lunati Voodoo 232/238 Cam and L76 Intake
LS3 With a Lunati Voodoo 212/218 Cam and a 4 Barrel Intake and Distributor
LS2 With a Lunati Voodoo 224/228 Cam, LS3 Heads and LS3 Intake

I will try the Hooker F Body 1 3/4 and 1 7/8 headers o each combination.

If I see anything interesting I will swap some of the cams around. If I see the potential I have a set of GMPP CNC L92 Heads to try also.

The L92 and LS3 are 58 tooth reluctors. I will run a MSD converter on the Carb engine and the GMPP Computer and harness on the L92.
The LS2 is a 24 tooth reluctor so I will run an 99 F Body PCM tuned with HP Tuners.
We will also be running the new Abaco Digital Mass Air Meters on both EFI Engines

Should be fun!


Robin
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-1

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-2

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-3

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-4

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-5

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-6

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-7

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-8

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-9

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
Old Sep 15, 2008 | 08:27 AM
  #9  
njc.corp's Avatar
TECH Resident
 
Joined: Jun 2007
Posts: 952
Likes: 0
Default

Thanks for the quick reply and facts

I would be happy to hear some more results in due time

Thanks

Nick--
Reply
Old Sep 18, 2008 | 01:24 AM
  #10  
Bring the Noise's Avatar
TECH Regular
 
Joined: Nov 2005
Posts: 459
Likes: 0
From: Arlington, TN
Default

Originally Posted by Robin L
The GMPP LS376/480 is an LS3 with a GM Performance Parts Hot Cam installed.

The engine is part number 19171224

This engine makes 480 Horsepower. The LS3 has the LS6/LS2 yellow valve springs already from the factory.
As you know this cam isn't that radical.
I am getting ready for some testing on the dyno soon.

I will running the following,

L92 with a Lunati Voodoo 232/238 Cam and L76 Intake
LS3 With a Lunati Voodoo 212/218 Cam and a 4 Barrel Intake and Distributor
LS2 With a Lunati Voodoo 224/228 Cam, LS3 Heads and LS3 Intake

I will try the Hooker F Body 1 3/4 and 1 7/8 headers o each combination.

If I see anything interesting I will swap some of the cams around. If I see the potential I have a set of GMPP CNC L92 Heads to try also.

The L92 and LS3 are 58 tooth reluctors. I will run a MSD converter on the Carb engine and the GMPP Computer and harness on the L92.
The LS2 is a 24 tooth reluctor so I will run an 99 F Body PCM tuned with HP Tuners.
We will also be running the new Abaco Digital Mass Air Meters on both EFI Engines

Should be fun!


Robin
I wonder what that LS2 and Voodoo 222/228 (60511) will do with a LS3 top end
Reply




All times are GMT -5. The time now is 11:04 PM.

story-0
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-1
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-2
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-3
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-4
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-5
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-6
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-7
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-8
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-9
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE