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

Need some input

Thread Tools
 
Search this Thread
 
Old Sep 22, 2009 | 08:53 PM
  #1  
TheLS1Kid's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Oct 2006
Posts: 1,724
Likes: 0
From: Orlando, FL
Default Need some input

I bought a brand new bare LS3 block about a year ago with plans to bore and stroke it to a 418 with some sort of FI. Those are still the plans but the build has gone nowhere due to low funds (forged bottom ends aren't cheap). So that is on hold.

I recently got my hands on a LS3/L92 longblock. Since all of the internals are already there, I want to put that in my car for the time being. I definitely want to leave the shortblock alone, but I don't know what direction to go with the top end. If you guys could give me any input whether to go with the LS3/L92 heads or a Trickflow setup it would be greatly appreciated. I'm looking for around 500rwhp and high 400's ft/lbs. Of course more would be better if possible.

If you could provide me with #'s from similar setups that would be great.

Thanks.

Last edited by TheLS1Kid; Sep 23, 2009 at 05:38 PM.
Reply
Old Sep 23, 2009 | 05:00 PM
  #2  
Gen414's Avatar
FormerVendor
iTrader: (38)
 
Joined: Nov 2008
Posts: 2,309
Likes: 0
From: Pearland, TX
Default

Originally Posted by TheLS1Kid
I bought a brand new bare LS3 block about a year ago with plans to bore and stroke it to a 418 with some sort of FI. Those are still the plans but the build has gone nowhere due to low funds (forged bottom ends aren't cheap). So that is on hold.

I recently got my hands on a LS3/L92 longblock. Since all of the internals are already there, I want to put that in my car for the time being. I definitely want to leave the shortblock alone, but I don't know what direction to go with the top end. If you guys could give me any input whether to go with the LS3/L92 heads or a Trickflow setup it would be greatly appreciated. I'm looking for around 500rwhp and high 400's ft/lbs.

If you could provide me with #'s from similar setups that would be great.

Thanks.

Well, if funds are low like you say, and since your power levels are moderate, and easily attainable, pick up a set of CNC L92's from Scroggin already assembled, for what, like $770 or so??? That is CRAZY cheap. With those heads and a cam in teh 23x/24x @ .050 and lower .6xx on a 114LSA and with a L76 intake will make that power all day long....

You can even run stock rockers to save money, so looking at what....@ $1300 for H/C/I? HA!!! That's dirt cheap....
Reply
Old Sep 23, 2009 | 05:37 PM
  #3  
TheLS1Kid's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Oct 2006
Posts: 1,724
Likes: 0
From: Orlando, FL
Default

Thanks for the reply.

Funds aren't THAT low. I just don't have the money for a forged bottom end for a 418 plus a good set of heads on top of it. And 500rwhp is just what i'd be hoping for. If a certain setup will make more then I'm all for it.

I appreciate it. Any others?
Reply
Old Sep 24, 2009 | 07:26 PM
  #4  
TheLS1Kid's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Oct 2006
Posts: 1,724
Likes: 0
From: Orlando, FL
Default

anyone else?
Reply
Old Sep 27, 2009 | 09:18 AM
  #5  
TheLS1Kid's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Oct 2006
Posts: 1,724
Likes: 0
From: Orlando, FL
Default

Nobody can suggest any other combinations?

I've been looking into WCCH working the L92/LS3 heads. Any experience with them?
Reply
Old Sep 27, 2009 | 11:37 AM
  #6  
davidws6's Avatar
TECH Enthusiast
iTrader: (36)
 
Joined: Oct 2004
Posts: 747
Likes: 5
From: Kansas
Default Wcch

He does top notch work as I have a set of his LS7 heads.

I also have a 402 with some ol hand ported 317's. It popped 482 rwhp with a FAST 90/90 and 1 3/4 headers to a 3 1/2 open chamber chokemaster. Oh, 231/237 115LSA cam 3.42 rear M6.

L92's would prolly suit ya fine. Then maybe a ported fast intake?
Reply
Old Sep 28, 2009 | 05:24 PM
  #7  
TheLS1Kid's Avatar
Thread Starter
TECH Fanatic
iTrader: (12)
 
Joined: Oct 2006
Posts: 1,724
Likes: 0
From: Orlando, FL
Default

Thanks for the response.

You talking about a ported LSxR?
Reply
Old Sep 28, 2009 | 05:57 PM
  #8  
davidws6's Avatar
TECH Enthusiast
iTrader: (36)
 
Joined: Oct 2004
Posts: 747
Likes: 5
From: Kansas
Default Fast

Yep for the L92's .
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Sep 28, 2009 | 06:41 PM
  #9  
JayplaySS's Avatar
Moderator
20 Year Member
Liked
Loved
Community Favorite
iTrader: (15)
 
Joined: Dec 2004
Posts: 4,615
Likes: 161
From: Miami, OH
Default

I would personally run (TEA) Trick Flow 225's with the ported FAST. Then you can run the usual cathedral head cam specs. Just my opinion though.
Reply




All times are GMT -5. The time now is 10:22 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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