Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Plug coolant pipes???

Thread Tools
 
Search this Thread
 
Old Jan 16, 2008 | 06:20 PM
  #1  
Mike Cordero's Avatar
Thread Starter
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (123)
 
Joined: Aug 2006
Posts: 792
Likes: 5
Default Plug coolant pipes???

If I eliminate the coolant pipes in a LS6 to plug and by pass them, that won't do any harm? What is the purpose of those coolant pipes? sorry for this dumb question.
Reply
Old Jan 17, 2008 | 05:27 AM
  #2  
Mike Cordero's Avatar
Thread Starter
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (123)
 
Joined: Aug 2006
Posts: 792
Likes: 5
Default Plug Coolant Pipes

Some Light Here Please, Thanks.
Reply
Old Jan 17, 2008 | 10:57 AM
  #3  
Steve - Race Eng's Avatar
LS1TECH Sponsor
20 Year Member
Top Answer: 1
iTrader: (1)
 
Joined: Mar 2003
Posts: 738
Likes: 177
From: Oceanside, Ca.
Default coolant pipes

If you are referring to the small diameter steel tubing on the intake face of the heads, they are vapor recovery lines. It is the way to get steam pockets out the the heads and recondensed back to liquid in the coolant recovery tank. Leave them alone.

Steve
__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Reply
Old Jan 17, 2008 | 10:59 AM
  #4  
99mongooSS's Avatar
TECH Resident
15 Year Member
iTrader: (4)
 
Joined: May 2007
Posts: 781
Likes: 2
From: Denton, Tx
Default

yeah dont mess with'em
Reply
Old Jan 17, 2008 | 11:20 AM
  #5  
Mike Cordero's Avatar
Thread Starter
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (123)
 
Joined: Aug 2006
Posts: 792
Likes: 5
Default Plug Coolant Pipes

Originally Posted by 99mongooSS
yeah dont mess with'em
I was told that LS1 brought the coolant pipe under the intake (from front to back of the engine), but later, for use with LS6 intakes, now a by pass in front and some plugs on back are used; so the old coolant pipe is removed. If this coolant pipes recover vapors from heads (in front and back of them) why now GM just plug the back part and by pass in front. This won't hurt in any way?
Reply
Old Jan 17, 2008 | 12:02 PM
  #6  
Steve - Race Eng's Avatar
LS1TECH Sponsor
20 Year Member
Top Answer: 1
iTrader: (1)
 
Joined: Mar 2003
Posts: 738
Likes: 177
From: Oceanside, Ca.
Default Vapor recovery tubes

Mike,

There is a patent issue with those tubes. Evans Cooling holds the patent on the original layout. GM may be trying to get around the patent with the change. Evans has sued GM over this.

Steve
__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Reply
Old Jan 17, 2008 | 12:05 PM
  #7  
Scoggin Dickey's Avatar
LS1TECH & Trucks Sponsor
20 Year Member
Photogenic
iTrader: (34)
 
Joined: Mar 2002
Posts: 3,523
Likes: 35
From: Lubbock, TX
Default

If you have an LS1 it runs under the intake and all 4 are connected.
If you have an LS6 the fronts are connected and the rear two are plugged

In the case of an Ls1 you can plug the back two and just connect the fronts, but if you have an LS6 you should leave it the way it is
__________________

800-456-0211 / PM / Facebook
WHIPPLE Superchargers, Procharger, Magnuson, Powerbond Sale, HPTuners packages!, Trickflow, AFR, PRC, CHE Trunion upgrade, $100 7.400" pushrod set, Custom Cam of your choice


Reply
Old Jan 17, 2008 | 01:10 PM
  #8  
M K S's Avatar
Teching In
 
Joined: Aug 2006
Posts: 30
Likes: 0
Default

Originally Posted by Scoggin Dickey
If you have an LS1 it runs under the intake and all 4 are connected.
If you have an LS6 the fronts are connected and the rear two are plugged

In the case of an Ls1 you can plug the back two and just connect the fronts, but if you have an LS6 you should leave it the way it is
Exactly correct. I have the back two plugged on my '98 and have had zero issues with it.
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 Jan 17, 2008 | 02:15 PM
  #9  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default

I've got an LS6 block with AFR heads, LS6 intake so I plugged the 2 in the back.
Reply
Old Jan 17, 2008 | 07:13 PM
  #10  
Mike Cordero's Avatar
Thread Starter
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (123)
 
Joined: Aug 2006
Posts: 792
Likes: 5
Default plug coolant pipes

Originally Posted by Viper
I've got an LS6 block with AFR heads, LS6 intake so I plugged the 2 in the back.
Thanks to all of you for your help and teaching.
Reply




All times are GMT -5. The time now is 07:31 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