Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

6.0 Build

Thread Tools
 
Search this Thread
 
Old Feb 3, 2010 | 10:07 PM
  #1  
02_ramair_ta's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (35)
 
Joined: Aug 2006
Posts: 352
Likes: 0
From: Hanford, Ca
Default 6.0 Build

Like the it says, I am putting a Lq9 into the formula, and I want to hear some ideas..

I have my MTI 2E heads and the X1 cam on a 112lsa. Do you think its a good combo with the LQ9? The heads should bring the Comp. Ratio up to around 11.0:1. I have checked piston to valve clearance, everything is playin together nice.

Really, I know this deal should work, because its basicly a 4.00 bore iron LS1, but I want to hear some ideas from others who might of done this swap, and things to watch out for.

Thanks in advance.
Reply
Old Feb 3, 2010 | 11:26 PM
  #2  
tspence45's Avatar
TECH Addict
iTrader: (30)
 
Joined: Jan 2007
Posts: 2,153
Likes: 1
From: Monmouth, Illinois
Default

I'm getting ready to do the same swap, only with an LQ4. Only thing I was really told I'd have to do, is drill and tap a hole for the LS1 alternator bracket to work with the iron block. Otherwise, everything else would be the same.
Reply
Old Feb 4, 2010 | 02:30 AM
  #3  
02_ramair_ta's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (35)
 
Joined: Aug 2006
Posts: 352
Likes: 0
From: Hanford, Ca
Default

Any reason a lq4 instead of the lq9? I've heard the lq4 a deeper dish pistion, so less compression... Not 100% on that, just what I've heard...
Reply
Old Feb 4, 2010 | 03:02 AM
  #4  
XtremeDime's Avatar
TECH Addict
iTrader: (16)
 
Joined: Jul 2005
Posts: 2,899
Likes: 0
From: Anchorage, ALASKA
Default

Maybe he is planning to go FI.
Reply
Old Feb 5, 2010 | 05:16 AM
  #5  
ramdaspadhye's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2005
Posts: 889
Likes: 1
Default

or maybe he's gonna go with ported 5.3 heads for moar torque!
Reply
Old Feb 5, 2010 | 06:35 PM
  #6  
tspence45's Avatar
TECH Addict
iTrader: (30)
 
Joined: Jan 2007
Posts: 2,153
Likes: 1
From: Monmouth, Illinois
Default

Originally Posted by 02_ramair_ta
Any reason a lq4 instead of the lq9? I've heard the lq4 a deeper dish pistion, so less compression... Not 100% on that, just what I've heard...
It's just what was available for a good price (Fresh rebuild, ARP hardware, 42 lb injectors, and TR224 cam for $1200 shipped). I'm thinking of maybe putting some LQ9/LS2 pistons in there to bump the compression up, though. Just depends on how cheap I can do it.
Reply
Old Feb 6, 2010 | 01:18 AM
  #7  
MustangKilla's Avatar
Teching In
iTrader: (1)
 
Joined: Mar 2009
Posts: 22
Likes: 0
From: Dallas, Texas
Default

Im doing the same swap with a LQ4 and I wish I had 11:1 compression. I used a set of 5.3l Stage 2.5 heads with a Torquer v3 cam and only got 10.4:1. Yours sounds like a good setup. I just put the accessory kit on mine 2 days ago and was worried that I would have to drill a hole for the altenator bracket and I didnt. Everything went in perfect.
Reply
Old Feb 6, 2010 | 02:03 AM
  #8  
tspence45's Avatar
TECH Addict
iTrader: (30)
 
Joined: Jan 2007
Posts: 2,153
Likes: 1
From: Monmouth, Illinois
Default

Originally Posted by MustangKilla
Im doing the same swap with a LQ4 and I wish I had 11:1 compression. I used a set of 5.3l Stage 2.5 heads with a Torquer v3 cam and only got 10.4:1. Yours sounds like a good setup. I just put the accessory kit on mine 2 days ago and was worried that I would have to drill a hole for the altenator bracket and I didnt. Everything went in perfect.
Any idea what kind of power you're making? I'm thinking of going with that same setup. I might go with Stage III LS6's, if I can get the money together for them, though. Still a little undecided on heads. I may just end up with stock 243's or 799's for now.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Feb 14, 2010 | 12:08 PM
  #9  
MustangKilla's Avatar
Teching In
iTrader: (1)
 
Joined: Mar 2009
Posts: 22
Likes: 0
From: Dallas, Texas
Default

sorry for the late response, but i hope to make about 475hp at the flexplate when its all said and done. maybe a 100/150 shot. I'm also putting a 4l80e behind it. I was thinking about the ls6 heads as well but i didnt go with them bc they would have taken my compression down and the 5.3l's were about the same price. The stockers are good, youre just stuck with that low compression, but i believe there is a lot of porting you can do on those.
Reply
Old Feb 14, 2010 | 09:32 PM
  #10  
tspence45's Avatar
TECH Addict
iTrader: (30)
 
Joined: Jan 2007
Posts: 2,153
Likes: 1
From: Monmouth, Illinois
Default

Sounds like a good setup. I actually completely changed my setup around. I'm going to stay low compression for now, it seems. I'm going with some L92 heads and LS3 intake on mine. If I can run a cam as big as the Torquer V3, it should put me ~560-570 hp at the flywheel, and all with basically stock GM parts and a cam. Only problem is, I'll still be stuck with low compression, since the L92's have 70cc combustion chambers. And I don't want to mill them, because I'm worried about PTV clearance with the huge valves they have. According to a Car Craft article with a stock LQ4, with a custom cam, with a little less duration, and a lot less lift than the V3, they made 551 crank hp with a set of stock L92 heads and a carb intake. So, I don't see why I shouldn't make a little more, since another test I saw showed that the LS3 intake flows a tad better and I'd have a bigger cam.
Reply
Old Feb 14, 2010 | 11:45 PM
  #11  
MustangKilla's Avatar
Teching In
iTrader: (1)
 
Joined: Mar 2009
Posts: 22
Likes: 0
From: Dallas, Texas
Default

do you know what the compression of the engine on that article was?
Reply
Old Feb 15, 2010 | 12:44 AM
  #12  
tspence45's Avatar
TECH Addict
iTrader: (30)
 
Joined: Jan 2007
Posts: 2,153
Likes: 1
From: Monmouth, Illinois
Default

Originally Posted by MustangKilla
do you know what the compression of the engine on that article was?
Seeing that the combustion chambers are essentially the same size on stock LQ4 heads and L92's, the compression ratio stayed basically the same. http://www.carcraft.com/techarticles...ads/index.html
Reply
Old Feb 16, 2010 | 07:50 AM
  #13  
MustangKilla's Avatar
Teching In
iTrader: (1)
 
Joined: Mar 2009
Posts: 22
Likes: 0
From: Dallas, Texas
Default

personally i dont see how you could make more than 500 hp with that setup but i have been wrong before. maybe there is something i'm missing
Reply
Old Feb 16, 2010 | 08:03 AM
  #14  
jason00ss's Avatar
Launching!
iTrader: (2)
 
Joined: Apr 2007
Posts: 234
Likes: 0
From: lewisburg, pennsylvania
Default

Originally Posted by MustangKilla
personally i dont see how you could make more than 500 hp with that setup but i have been wrong before. maybe there is something i'm missing
you are missing something, he said at the flexplate/flywheel
Reply
Old Feb 16, 2010 | 03:54 PM
  #15  
MustangKilla's Avatar
Teching In
iTrader: (1)
 
Joined: Mar 2009
Posts: 22
Likes: 0
From: Dallas, Texas
Default

its so simple
Reply
Old Feb 16, 2010 | 08:36 PM
  #16  
tspence45's Avatar
TECH Addict
iTrader: (30)
 
Joined: Jan 2007
Posts: 2,153
Likes: 1
From: Monmouth, Illinois
Default

Originally Posted by MustangKilla
its so simple
It's so simple because those heads even outflow most of the ported LS6 castings people sell. They flow 320-330 cfm straight from GM. I've heard that a simple valve job will put you up near 360 cfm.
Reply
Old Feb 18, 2010 | 10:32 AM
  #17  
MustangKilla's Avatar
Teching In
iTrader: (1)
 
Joined: Mar 2009
Posts: 22
Likes: 0
From: Dallas, Texas
Default

you should also try milling them as well. since they flow that well milling them would bump up your compression a good bit if you have the PTV clearance afterwards
Reply




All times are GMT -5. The time now is 06:34 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE