Forced Induction Superchargers | Turbochargers | Intercoolers

Confused on which block for boost?

Thread Tools
 
Search this Thread
 
Old Nov 14, 2012 | 04:48 PM
  #1  
GT-CORDY's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2011
Posts: 85
Likes: 0
From: Houston,TX
Default Confused on which block for boost?

Hey guys Iam planning on a twin turbo LSX to go into my Mustang more street than strip car and been doing alot of reading on here trying to figure out what block to start out with. I was planning on buying a LSX block and go 427ci but somethings I read about them that by the time the block comes out of the machine shop it will cost almost as much as a ERL or getting close to a RHS block? Also I keep reading about the core shifting issues with the LSX block? Its just hard for me to spend 5k on a block from RHS but the weight savings would be nice. Looking to make as much power as I can on pump and meth 1k if I can and as much as it will make on race gas for the fun outtings lol. Also cant decide on a tall deck or short deck. Most have said short deck but is the tall deck and extra cubes worth it? Thanks guys
Reply
Old Nov 14, 2012 | 04:56 PM
  #2  
ws602's Avatar
TECH Enthusiast
20 Year Member
iTrader: (2)
 
Joined: Jul 2002
Posts: 548
Likes: 31
From: shreveport,La
Default

Call Bryan at LME he will steer you in the right direction .They built me a Lsx 427 that made tons of power for boost!! Heck you in Houston stop by and he will explain their process.
Reply
Old Nov 14, 2012 | 04:59 PM
  #3  
ws602's Avatar
TECH Enthusiast
20 Year Member
iTrader: (2)
 
Joined: Jul 2002
Posts: 548
Likes: 31
From: shreveport,La
Default

That extra 2500.00 from the cost difference of the block I would put towards a killer set of heads .. In your application a 100 pounds is not going to make a bit of difference .
Reply
Old Nov 14, 2012 | 05:01 PM
  #4  
vetkila's Avatar
Teching In
 
Joined: Feb 2010
Posts: 23
Likes: 0
Default

LME built me a 434 LSX block that I have twin GT35R's on and it's awesome.
Reply
Old Nov 14, 2012 | 07:32 PM
  #5  
GT-CORDY's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2011
Posts: 85
Likes: 0
From: Houston,TX
Default

Originally Posted by ws602
That extra 2500.00 from the cost difference of the block I would put towards a killer set of heads .. In your application a 100 pounds is not going to make a bit of difference .
Thats what I was thinking, I figured I would get a set of All Pro heads and LSX block instead of a 5k block.

How much power are you guys putting down with your boosted 427's or larger?
Reply
Old Nov 14, 2012 | 08:27 PM
  #6  
ws602's Avatar
TECH Enthusiast
20 Year Member
iTrader: (2)
 
Joined: Jul 2002
Posts: 548
Likes: 31
From: shreveport,La
Default

Originally Posted by GT-CORDY
Thats what I was thinking, I figured I would get a set of All Pro heads and LSX block instead of a 5k block.

How much power are you guys putting down with your boosted 427's or larger?
Pm sent
Reply
Old Nov 15, 2012 | 10:40 AM
  #7  
GT-CORDY's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2011
Posts: 85
Likes: 0
From: Houston,TX
Default

Hey guys I just got off the phone with Brian at LME and what a nice guy! He helped me pick out a engine package and it sounds like a great one indeed. Look forward to working with him on this project!
Reply
Old Nov 15, 2012 | 11:39 AM
  #8  
98_LS1's Avatar
Launching!
iTrader: (38)
 
Joined: Jan 2004
Posts: 232
Likes: 0
From: Chicago
Default

What setup did he advise for you??
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Nov 15, 2012 | 11:48 AM
  #9  
GT-CORDY's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2011
Posts: 85
Likes: 0
From: Houston,TX
Default

LSX 427 with twins built to hold alot of boost.
Reply




All times are GMT -5. The time now is 10:34 PM.

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