Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

help with mac install

Thread Tools
 
Search this Thread
 
Old Jan 30, 2005 | 02:28 PM
  #1  
8ASTANG's Avatar
Thread Starter
Teching In
 
Joined: Oct 2004
Posts: 30
Likes: 0
From: VANDENBERG AFB, CA
Default help with mac install

I,m putting the pass side back together and noticed the stock manifold had two egr ports and my headers only have one what do i do?
Attached Thumbnails help with mac install-dsc00689.jpg   help with mac install-dsc00690.jpg   help with mac install-dsc00691.jpg   help with mac install-dsc00692.jpg  

Last edited by 8ASTANG; Jan 30, 2005 at 02:42 PM. Reason: forgot pics
Reply
Old Jan 30, 2005 | 03:26 PM
  #2  
BTLFEDSS's Avatar
TECH Fanatic
iTrader: (12)
 
Joined: Feb 2004
Posts: 1,600
Likes: 0
From: Mass
Default

One is for your air tube and ones for your egr looks like you have no egr provision on your header the one in the picture is for you air tube
BTLFEDSS
Reply
Old Jan 30, 2005 | 03:45 PM
  #3  
8ASTANG's Avatar
Thread Starter
Teching In
 
Joined: Oct 2004
Posts: 30
Likes: 0
From: VANDENBERG AFB, CA
Default

Anybody know what I should do?I bought these headers off of another member and was told they are for a 99 f body.My car is a 99.
Reply
Old Jan 30, 2005 | 03:51 PM
  #4  
jrp's Avatar
jrp
SN95 Director
20 Year Member
iTrader: (16)
 
Joined: Jul 2003
Posts: 10,755
Likes: 7
From: Valencia, Ca
Default

those are for an 01+ car. just !egr or get new headers.
Reply
Old Jan 30, 2005 | 04:11 PM
  #5  
BTLFEDSS's Avatar
TECH Fanatic
iTrader: (12)
 
Joined: Feb 2004
Posts: 1,600
Likes: 0
From: Mass
Default

You can plug the hole in your in take with a rubber plug which i have done can't remember the size off the top of my head but i'm sure if you do a search you can find it in doing this you eliminate the egr and will get an SES light if you can live with that or will have to get a tune or sell those and buy a new set
BTLFEDSS
Reply
Old Jan 30, 2005 | 06:19 PM
  #6  
SmokingWS6's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jun 2004
Posts: 1,795
Likes: 2
From: St. Louis MO
Default

Rubber plug won't do it. Block off plates are very common, you could try a search for them. Basically cut out a sheet of metal the shape of the port, cutout some generic autozone gasket and bolt it shut.
Reply
Old Jan 30, 2005 | 08:08 PM
  #7  
dug's Avatar
dug
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,721
Likes: 0
From: Phoenix
Default

Better yet install the 2001 intake and add 10hp to your header swap.
Reply
Old Jan 31, 2005 | 01:05 AM
  #8  
LS1LT1's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
iTrader: (16)
 
Joined: Nov 2001
Posts: 9,331
Likes: 0
Lightbulb

Originally Posted by SmokingWS6
Rubber plug won't do it. Block off plates are very common, you could try a search for them. Basically cut out a sheet of metal the shape of the port, cutout some generic autozone gasket and bolt it shut.
I thonk he was talking about the LS1 intake/EGR block off thing, not the header block off plates that you're referring to.

The intake freeze plug thingie is 1 3/8" I think btw.
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




All times are GMT -5. The time now is 06:49 AM.

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