C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

EM Header Question

Thread Tools
 
Search this Thread
 
Old Feb 19, 2004 | 02:33 AM
  #1  
STL94LT1's Avatar
STL94LT1
Thread Starter
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default EM Header Question

I recieved my EM headers today, and I'm really impressed with their quality. Only one problem, my air tube fittings are not drilled through the header tubes. Is anyone elses predrilled, or are we suppose to drill as needed?
Reply
Old Feb 19, 2004 | 06:20 AM
  #2  
FX GS's Avatar
FX GS
Pro
10 Year Member
 
Joined: Mar 2001
Posts: 699
Likes: 0
From: Camp Hill PA
Default Re: EM Header Question (STL94LT1)

You drill as needed
Reply
Old Feb 19, 2004 | 07:31 AM
  #3  
RichS's Avatar
RichS
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Aug 1999
Posts: 7,339
Likes: 137
From: WilkesBarre PA
Default Re: EM Header Question (FX GS)

I'm hoping the set we ordered for my buddy's 96 CE comes this week :cheers:
Reply
Old Feb 19, 2004 | 09:28 AM
  #4  
NavyVet's Avatar
NavyVet
Drifting
15 Year Member
 
Joined: Jul 2000
Posts: 1,661
Likes: 4
From: Phoenix, Arizona
Default Re: EM Header Question (STL94LT1)

EM Headers :yesnod:
Reply
Old Feb 19, 2004 | 09:34 AM
  #5  
C4Crazy787's Avatar
C4Crazy787
Drifting
 
Joined: Jul 2002
Posts: 1,273
Likes: 0
From: Olathe, KS USA
Default Re: EM Header Question (STL94LT1)

I talked to Merle about that last week, he said they don't drill'm incase someone was not going to reinstall the AIR system. I'm keeping mine so he said a 3/8 hole should do the trick. :seeya
Reply
Old Feb 19, 2004 | 11:00 AM
  #6  
STL94LT1's Avatar
STL94LT1
Thread Starter
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default Re: EM Header Question (STL94LT1)

Thanks guys.

Going to do a test fitting this weekend, can't wait to hear the car run with the new headers/high flow cats.
Reply
Old Feb 19, 2004 | 11:01 AM
  #7  
cprgmr's Avatar
cprgmr
Melting Slicks
15 Year Member
 
Joined: Sep 2000
Posts: 2,710
Likes: 1
From: Green Bay WI
Default Re: EM Header Question (C4Crazy787)

I have the same issue - to keep the AIR and drill or ditch it. So, are there any advantages to eliminating the AIR system? Does anyone know what's involved beyond the obvious (blocking off the AIR pipe connector at the back of the intake)?
Reply
Old Feb 20, 2004 | 08:15 AM
  #8  
96GS#007's Avatar
96GS#007
Race Director
 
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Default Re: EM Header Question (cprgmr)

I have the same issue - to keep the AIR and drill or ditch it. So, are there any advantages to eliminating the AIR system? Does anyone know what's involved beyond the obvious (blocking off the AIR pipe connector at the back of the intake)?
If you're going to run catalytic converters (i.e. Random Tech bullet cats, etc), you want to keep the AIR system.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Feb 20, 2004 | 09:32 AM
  #9  
cprgmr's Avatar
cprgmr
Melting Slicks
15 Year Member
 
Joined: Sep 2000
Posts: 2,710
Likes: 1
From: Green Bay WI
Default Re: EM Header Question (96GS#007)

If you're going to run catalytic converters (i.e. Random Tech bullet cats, etc), you want to keep the AIR system.
Thanks Jim - I'm going with EM long tubes so the cats will be gone! :cheers: I guess then it would be possible just to block off the plate, etc...
Reply
Old Feb 20, 2004 | 09:37 AM
  #10  
VR'92's Avatar
VR'92
Team Owner
20 Year Member
 
Joined: Sep 2003
Posts: 25,295
Likes: 4
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
Default Re: EM Header Question (cprgmr)

Pull the tubes, block off the plates, and get a custom chip with it outta there.
:yesnod:
Reply

Get notified of new replies

To EM Header Question





All times are GMT -4. The time now is 09:17 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE