LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EGR Valve and air pump

Thread Tools
 
Search this Thread
 
Old Oct 18, 2006 | 11:34 AM
  #1  
mack's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Oct 2004
Posts: 222
Likes: 0
From: Easton, Md
Default EGR Valve and air pump

Thinking about removing these. I have pace setter LT with the emission hook ups. I know they make an EGR valve block off plate, but what do you use to block off the EGR Tube connection to the header and where the air tubes from the pump attach at the the top of the headers?

I know if I do this I'll need to delete the code so I don't get an SES light.

Thanks
Reply
Old Oct 19, 2006 | 06:18 AM
  #2  
mack's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Oct 2004
Posts: 222
Likes: 0
From: Easton, Md
Default

Anyone?
Reply
Old Oct 19, 2006 | 06:42 AM
  #3  
the_merv's Avatar
11 Second Club
Veteran: Air Force
20 Year Member
Loved
Community Favorite
iTrader: (88)
 
Joined: Mar 2006
Posts: 21,019
Likes: 893
From: The Beach...
Default

The kit with the Plates comes with 3 plates, 2 are for the spots on back of the Intake, and the third for the Header. I used 1/2" plugs from Lowes to block the Headers off when I had my old emissions shorties. The Air stuff is easy to remove, remember to block the Intake off also. You more than likely won't throw a light, the 95's and back aren't as touchy.
Reply
Old Oct 19, 2006 | 08:41 AM
  #4  
mack's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Oct 2004
Posts: 222
Likes: 0
From: Easton, Md
Default

I did a search and came accross this; https://ls1tech.com/forums/showthrea...9&page=3&pp=20

After reading, it's seems this is not a good thing to do on LS1's. It doesn't mention LT1's though and I will say that I have been running a vented pass. side valve cover for about a year now with no issues. So is this mod different for LT1 compared to LS1 or is it the same principal and should NOT be done
Reply
Old Oct 19, 2006 | 08:45 AM
  #5  
mack's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Oct 2004
Posts: 222
Likes: 0
From: Easton, Md
Default

Originally Posted by the_merv
The kit with the Plates comes with 3 plates, 2 are for the spots on back of the Intake, and the third for the Header. I used 1/2" plugs from Lowes to block the Headers off when I had my old emissions shorties. The Air stuff is easy to remove, remember to block the Intake off also. You more than likely won't throw a light, the 95's and back aren't as touchy.
Merv, Where are you getting the kit from, what are the two spots on rear of intake. I thought their is only one where the EGR Valve goes? Did you pull the PVC valve and block it too, if so how?
Reply
Old Oct 19, 2006 | 09:12 AM
  #6  
camar0corey's Avatar
TECH Junkie
15 Year Member
iTrader: (22)
 
Joined: May 2006
Posts: 3,974
Likes: 2
From: Spring Hill, FL
Default

I thought the pcv and the egr systems were seperate? Or is the air pump part of the pcv system?
Reply
Old Oct 19, 2006 | 09:19 AM
  #7  
mack's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Oct 2004
Posts: 222
Likes: 0
From: Easton, Md
Default

Originally Posted by camar0corey
I thought the pcv and the egr systems were seperate? Or is the air pump part of the pcv system?
It's my understanding they work together. Read the link a couple post up and see if you understand it that way.
Reply
Old Oct 19, 2006 | 09:20 AM
  #8  
camar0corey's Avatar
TECH Junkie
15 Year Member
iTrader: (22)
 
Joined: May 2006
Posts: 3,974
Likes: 2
From: Spring Hill, FL
Default

Well I read the link, it seemed they were talking only about the PCV system, I didn't read anything about removing a air pump. I read all 3 pages, and the 1st post describing the procedure, I can't seem to find a mention of a air pump.
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
Old Oct 19, 2006 | 01:25 PM
  #9  
the_merv's Avatar
11 Second Club
Veteran: Air Force
20 Year Member
Loved
Community Favorite
iTrader: (88)
 
Joined: Mar 2006
Posts: 21,019
Likes: 893
From: The Beach...
Default

Originally Posted by mack
Merv, Where are you getting the kit from, what are the two spots on rear of intake. I thought their is only one where the EGR Valve goes? Did you pull the PVC valve and block it too, if so how?
On the Intake, the EGR Valve bolts on, as well as the EGR Exhaust Tube from the Manifold/Header, which you have to block off also.
Reply
Old Oct 19, 2006 | 02:16 PM
  #10  
mack's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Oct 2004
Posts: 222
Likes: 0
From: Easton, Md
Default

Originally Posted by the_merv
On the Intake, the EGR Valve bolts on, as well as the EGR Exhaust Tube from the Manifold/Header, which you have to block off also.
Okay, didn't realize the tube was seperate, thought it was part of the EGR. Where did you get the kit?
Reply




All times are GMT -5. The time now is 07:41 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