Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Coolant blockoff rear of Heads

Thread Tools
 
Search this Thread
 
Old Aug 18, 2010 | 03:38 PM
  #1  
BKnBLK05's Avatar
Thread Starter
Staging Lane
 
Joined: May 2008
Posts: 97
Likes: 0
From: Glen St Mary,Fla.
Default Coolant blockoff rear of Heads

I just need a clear answer on the steamholes on the rear of a my heads,New Camaro Stroker build,The stock L92 heads were blocked off at the back from the factory,Now X headed, turbo, hi hp setup,Do I need to tie these into the front crossover tube or just block'em off like the factory heads were? Thanks in advance...Trying to get this thing done
Reply
Old Aug 18, 2010 | 03:52 PM
  #2  
bluehawk2's Avatar
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default

I am getting the water vapor collection block from kurt Urban. It ties all 4 into 1

I think in a high hp situation it is nessecary
Reply
Old Aug 18, 2010 | 08:59 PM
  #3  
BKnBLK05's Avatar
Thread Starter
Staging Lane
 
Joined: May 2008
Posts: 97
Likes: 0
From: Glen St Mary,Fla.
Default

Thanks bluehawk2..................anybody else? just wanta see if this is critical on the rear...
Reply
Old Aug 18, 2010 | 09:06 PM
  #4  
nysbadmk8's Avatar
TECH Enthusiast
 
Joined: Apr 2002
Posts: 537
Likes: 2
From: Lehighton Pa
Default

7 and 8 are the hottest, any way to move more coolant around them is a benefit.
Reply
Old Aug 19, 2010 | 03:19 PM
  #5  
BKnBLK05's Avatar
Thread Starter
Staging Lane
 
Joined: May 2008
Posts: 97
Likes: 0
From: Glen St Mary,Fla.
Default

Thanks fellows,I'll be making this mod,motors already in the car,guess I'll get another crossover tube from Chevrolet and tie'em together back to front..
Reply
Old Aug 24, 2010 | 06:53 PM
  #6  
99LSS1's Avatar
11 Second Club
iTrader: (12)
 
Joined: Sep 2003
Posts: 1,389
Likes: 0
From: Monroe Wa.
Default

Originally Posted by BKnBLK05
Thanks fellows,I'll be making this mod,motors already in the car,guess I'll get another crossover tube from Chevrolet and tie'em together back to front..
This is what we did for my 402 build. Quite easy to do and hopefully it will keep the rear cylinders a bit cooler!!
Reply
Old Aug 24, 2010 | 09:02 PM
  #7  
Big_Bird_WS6's Avatar
Banned
iTrader: (7)
 
Joined: Apr 2009
Posts: 1,628
Likes: 1
Default

Originally Posted by bluehawk2
I am getting the water vapor collection block from kurt Urban. It ties all 4 into 1

I think in a high hp situation it is nessecary
i thought of this. but then i just conected mine all together. and then back to the rad.

where does kurts leak out at?
Reply
Old Aug 24, 2010 | 10:03 PM
  #8  
edge04's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: Mar 2009
Posts: 626
Likes: 1
Default

Originally Posted by 99LSS1
This is what we did for my 402 build. Quite easy to do and hopefully it will keep the rear cylinders a bit cooler!!
how did you connect them front to back? any pics?
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 Aug 24, 2010 | 10:47 PM
  #9  
bluehawk2's Avatar
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default

http://www.kurturbanperformance.com/...or-system.html

It allow you to use an lines to connect to the dist block and then to the radiator.
Reply
Old Aug 25, 2010 | 07:42 AM
  #10  
99LSS1's Avatar
11 Second Club
iTrader: (12)
 
Joined: Sep 2003
Posts: 1,389
Likes: 0
From: Monroe Wa.
Default

Originally Posted by edge04
how did you connect them front to back? any pics?
Yea, We used 3/8's hose and some bent breke line. Hopeflly these Pic's are clear enough.
Attached Thumbnails Coolant blockoff rear of Heads-speed-secrets-ss-047.jpg   Coolant blockoff rear of Heads-speed-secrets-ss-041.jpg   Coolant blockoff rear of Heads-speed-secrets-ss-042.jpg  
Reply
Old Aug 26, 2010 | 09:31 PM
  #11  
edge04's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: Mar 2009
Posts: 626
Likes: 1
Default

I didn't even check my TFS 235 but I would imagine the back ports are just blocked off??
Reply
Old Aug 26, 2010 | 09:40 PM
  #12  
TransWS6Am's Avatar
TECH Addict
iTrader: (41)
 
Joined: Feb 2007
Posts: 2,005
Likes: 2
From: Battlecreek, MI / Mansfield, OH
Default

Originally Posted by bluehawk2
http://www.kurturbanperformance.com/...or-system.html

It allow you to use an lines to connect to the dist block and then to the radiator.
i think im going to order one of these. seems like a very good idea.
Reply
Old Aug 26, 2010 | 10:09 PM
  #13  
edge04's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: Mar 2009
Posts: 626
Likes: 1
Default

Originally Posted by edge04
I didn't even check my TFS 235 but I would imagine the back ports are just blocked off??
also need to see if it will work with a maggie supercharger on top
Reply
Old Aug 26, 2010 | 11:44 PM
  #14  
Irish350's Avatar
TECH Fanatic
iTrader: (14)
 
Joined: Mar 2007
Posts: 1,968
Likes: 1
From: Phoenix/Tempe, AZ
Default

Originally Posted by bluehawk2
I am getting the water vapor collection block from kurt Urban. It ties all 4 into 1

I think in a high hp situation it is nessecary
whats high hp?
Reply
Old Aug 27, 2010 | 08:47 AM
  #15  
cam's Avatar
cam
TECH Junkie
iTrader: (9)
 
Joined: Apr 2004
Posts: 3,389
Likes: 67
From: in the garage
Default

I spent a lot of time researching this a while back and received some good info here so I hope it helps you out

https://ls1tech.com/forums/forced-induction/630983-will-ls6-coolant-tube-conversion-hurt-cooling-system-performance-2.html
Reply
Old Aug 27, 2010 | 10:14 AM
  #16  
Big_Bird_WS6's Avatar
Banned
iTrader: (7)
 
Joined: Apr 2009
Posts: 1,628
Likes: 1
Default

only reason i went a different route is where do i mount the little black thing on my ls2 intake. lol. and i bought these. and bought 2 t fittings and 2 elbow fittings and then got braided line and conected them. and looks stock.
Reply
Old Aug 27, 2010 | 10:47 AM
  #17  
edge04's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: Mar 2009
Posts: 626
Likes: 1
Default

Wll the Kurt system will not work with my SC intake so what I am thinking about doing is putting another crossover line like this one on the back my question is: can I just run a line from the front to the back and then "T" these into my coolant system such as into the lower radiator hose or heater hose? or is using the above Wegner fittings a better option?


Last edited by edge04; Aug 27, 2010 at 11:29 AM.
Reply
Old Aug 27, 2010 | 12:11 PM
  #18  
Big_Bird_WS6's Avatar
Banned
iTrader: (7)
 
Joined: Apr 2009
Posts: 1,628
Likes: 1
Default

where did you find that? i would have used that if i had two of them. lol.
Reply
Old Aug 27, 2010 | 05:49 PM
  #19  
edge04's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: Mar 2009
Posts: 626
Likes: 1
Default

that is from magnacharger but you can get them from NAPA
Reply
Old Aug 29, 2010 | 11:04 AM
  #20  
edge04's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: Mar 2009
Posts: 626
Likes: 1
Default

Originally Posted by edge04
Wll the Kurt system will not work with my SC intake so what I am thinking about doing is putting another crossover line like this one on the back my question is: can I just run a line from the front to the back and then "T" these into my coolant system such as into the lower radiator hose or heater hose? or is using the above Wegner fittings a better option?

I am going with two of these and then going to T them together and run a line to my lower radiator hose. Should work fine
Reply



All times are GMT -5. The time now is 06:37 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