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

lq9 with a 4.8 crank?

Thread Tools
 
Search this Thread
 
Old Jul 5, 2010 | 09:33 AM
  #1  
Young LS1's Avatar
Thread Starter
Teching In
 
Joined: May 2010
Posts: 16
Likes: 0
Default lq9 with a 4.8 crank?

Well im almost finish with my 94 cam. my 5.3 is almost done, but im hearing ideas about a lq9 with a 4.8 crank. What can i rev it up too, should i change motors. Anybody know a good combination for those? Somebody drop some info on me.
Reply
Old Jul 5, 2010 | 02:25 PM
  #2  
KCS's Avatar
KCS
Moderator
20 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Mar 2005
Posts: 8,859
Likes: 323
From: Conroe, TX
Default

Originally Posted by Young LS1
Well im almost finish with my 94 cam. my 5.3 is almost done, but im hearing ideas about a lq9 with a 4.8 crank. What can i rev it up too, should i change motors. Anybody know a good combination for those? Somebody drop some info on me.
You'll basically end up wasting a lot of time and money. What you will have is an engine with considerably less power and torque, yet can't rev any higher because you'll be limited by the valvetrain. Stock 3.622" stroke streetcar engines are turning 7-7.5k RPM, while 4" stroke race engines are turning ~10K RPM.

This topic has been discussed in depth several times. If you need more information, you can use the search function to find those threads.
Reply
Old Jul 5, 2010 | 02:33 PM
  #3  
427's Avatar
427
TECH Junkie
iTrader: (3)
 
Joined: May 2003
Posts: 3,898
Likes: 6
From: Clayton, North Carolina
Default

Waste of time unless your class rules require a small ci engine. I have built a couple small crank engines for class racing reasons, but the power in reasonable ci is worth using.

Kurt
Reply
Old Jul 5, 2010 | 08:23 PM
  #4  
Hans Grüber's Avatar
Launching!
iTrader: (2)
 
Joined: Jul 2006
Posts: 267
Likes: 0
Default

Originally Posted by KCS
You'll basically end up wasting a lot of time and money. What you will have is an engine with considerably less power and torque, yet can't rev any higher because you'll be limited by the valvetrain. Stock 3.622" stroke streetcar engines are turning 7-7.5k RPM, while 4" stroke race engines are turning ~10K RPM.

This topic has been discussed in depth several times. If you need more information, you can use the search function to find those threads.
+1

Here is another thread about this very topic:

https://ls1tech.com/forums/generatio...crank-ls2.html
Reply




All times are GMT -5. The time now is 06:15 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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