Forced Induction Superchargers | Turbochargers | Intercoolers

Which Tall Intake Manifold should I go with for Boost?

Thread Tools
 
Search this Thread
 
Old Apr 6, 2013 | 05:10 PM
  #1  
adrynalinjunkie's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Oct 2009
Posts: 430
Likes: 2
Default Which Tall Intake Manifold should I go with for Boost?

I have a LQ4 that I am putting in my 67' Chevelle with a T6 S88 Turbo.

I am about to order a Edlelbrock Pro Flow XT but I thought I should ask if there are any other options to consider that might be better.

My Throttlebody is a Fast 90mm and I have a 4" cowl hood so I can fit a tall Intake.
Reply
Old Apr 6, 2013 | 05:29 PM
  #2  
westtexasbuff's Avatar
Banned
iTrader: (40)
 
Joined: Dec 2006
Posts: 1,012
Likes: 3
From: Austin, Tx
Default

Holley Hi-Ram

/thread
Reply
Old Apr 6, 2013 | 06:00 PM
  #3  
LS1NOVA's Avatar
TECH Addict
iTrader: (12)
 
Joined: Nov 2002
Posts: 2,269
Likes: 12
From: Minneapolis,MN
Default

Xt fits under the stock hood if you care about that.
Reply
Old Apr 6, 2013 | 08:09 PM
  #4  
adrynalinjunkie's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Oct 2009
Posts: 430
Likes: 2
Default

I have a 4" cowl.
I will look at the Holley. I want a manifold that won't leak. So I want the tb flange to have the o ring boss not the LS1 style flat flange.
Reply
Old Apr 6, 2013 | 09:43 PM
  #5  
Blackpanther99's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2012
Posts: 6,963
Likes: 4
From: Baytown, TX
Default

Holley Hi Ram any day. They are great intakes for boost.
Reply
Old Apr 8, 2013 | 10:04 AM
  #6  
Sarg's Avatar
TECH Addict
iTrader: (6)
 
Joined: Aug 2011
Posts: 2,838
Likes: 3
From: Atlanta, GA
Default

I have the Holley Hi Ram, but I can tell you mine just had the flat gasket surface for the TB. That being said, it would be easy to machine a groove for an o ring on the TB mating surface.
Reply
Old Apr 8, 2013 | 10:07 AM
  #7  
westtexasbuff's Avatar
Banned
iTrader: (40)
 
Joined: Dec 2006
Posts: 1,012
Likes: 3
From: Austin, Tx
Default

I'm just using the paper gasket that comes with the intake, but I've seen a friend put a groove in the TBs to use an o-ring.
Reply
Old Apr 8, 2013 | 11:15 AM
  #8  
adrynalinjunkie's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Oct 2009
Posts: 430
Likes: 2
Default

I saw my buddies leak meth on the dyno under boost right at that flat TB flange. That's why I want the o ring groove.
BTW the Edelbrock Pro flo XT has the flat flange on their 7139 part # but their 7140 has the oring groove.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo




All times are GMT -5. The time now is 12:22 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