Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

2 questions on steam lines

Thread Tools
 
Search this Thread
 
Old Sep 5, 2011 | 07:41 PM
  #1  
samckitt's Avatar
Thread Starter
TECH Enthusiast
20 Year Member
Photogenic
Liked
iTrader: (5)
 
Joined: Dec 2005
Posts: 535
Likes: 9
From: Williamsburg, VA
Default 2 questions on steam lines

1. Is there picture anywhere of all the different styles of steam lines?

2. The LT1 had the crossover steam line on the back of the heads. The LS engines have it on the front & the back holes plugged. Is there any advantage to having it in the back with the front plugged, or with a line coming from both?

Thanks,
Scot
Reply
Old Sep 5, 2011 | 08:14 PM
  #2  
01cherryreds10's Avatar
TECH Enthusiast
15 Year Member
Photogenic
iTrader: (9)
 
Joined: Mar 2008
Posts: 698
Likes: 0
From: IL
Default

Supposedly having the backs plugged can cause hot spots on the rear cylinders. I doubt it will matter unless you're making serious power.

The f-body line connects all four under the intake.
The truck connects the front two and the hose comes out up top.
The Corvette connects the fronts and the hose goes towards the front of the engine.
Reply
Old Sep 5, 2011 | 08:17 PM
  #3  
Irish350's Avatar
TECH Fanatic
iTrader: (14)
 
Joined: Mar 2007
Posts: 1,968
Likes: 1
From: Phoenix/Tempe, AZ
Default

different angle position/intake setups are usually the reason why either the fronts/backs/all are connected.

they all look pretty much the same with the exception of the fbodies which didnt have 2 caps and 1 tube (either front or back) but had a "spider" that hit all 4 corners and had an outlet. Im not sure of a picture reference but if youve seen one of them they look the same with slightly different bends (ie, i think trucks had a deeper bend because of the intake)

ideally theyre all connected so you can release steam from each section of the head, but gm didnt think it was necessary based on the usage of the engines, the angle they sit in vehicles, etc. If youre racing id connect them all.

EDIT: also **** lt1s and their banjo bolts, i remember having a hell of a time on the back of those heads lol
Reply
Old Sep 5, 2011 | 08:39 PM
  #4  
Rick Speed's Avatar
TECH Resident
iTrader: (55)
 
Joined: Oct 2005
Posts: 847
Likes: 0
From: Cleveland, Oh
Default

The LT1 only had it coming from the back because it was reverse cooled and it needed them.
Reply
Old Sep 5, 2011 | 09:02 PM
  #5  
samckitt's Avatar
Thread Starter
TECH Enthusiast
20 Year Member
Photogenic
Liked
iTrader: (5)
 
Joined: Dec 2005
Posts: 535
Likes: 9
From: Williamsburg, VA
Default

Originally Posted by Rick Speed
The LT1 only had it coming from the back because it was reverse cooled and it needed them.
Not sure why the "reverse" makes any difference. Reverse meant it went through the heads first, then the cylinder walls. Instead of through the block & then the heads.
Reply
Old Sep 5, 2011 | 10:02 PM
  #6  
Rick Speed's Avatar
TECH Resident
iTrader: (55)
 
Joined: Oct 2005
Posts: 847
Likes: 0
From: Cleveland, Oh
Default

I Beleive because it caused steam pockets so they needed to vent them
Reply
Old Sep 5, 2011 | 10:12 PM
  #7  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Originally Posted by 01cherryreds10
The f-body line connects all four under the intake.
They changed this setup in 2001 when they started using the LS6 intake on all LS1 f-bodies...the LS6 intake had a dropped floor compared to the LS1 intake, so there was no longer room to run the hard line under the intake. The rears on mine are capped, and only the front two are connected. I will likely look for a way to hook the rears back up, but it has to be clean, and so far, I've not been able to figure out a way to do it without making it look like a bird's nest of tubing and fittings.
Reply
Old Sep 5, 2011 | 11:05 PM
  #8  
Rick Speed's Avatar
TECH Resident
iTrader: (55)
 
Joined: Oct 2005
Posts: 847
Likes: 0
From: Cleveland, Oh
Default

I've seen people use the one that connects all 4 corners under the LS6. They had to "clearance" the ribbing under the LS6
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 Sep 6, 2011 | 05:39 AM
  #9  
Pop N Wood's Avatar
TECH Junkie
iTrader: (1)
 
Joined: May 2006
Posts: 3,402
Likes: 8
Default

I've seen ones where people cap all 4.

Seeing a pattern here?
Reply
Old Sep 6, 2011 | 10:28 AM
  #10  
1A Dan's Avatar
On The Tree
iTrader: (9)
 
Joined: Sep 2009
Posts: 158
Likes: 0
From: MA
Default

definitely should not be capping all 4, that's just asking for trouble. I opted to use all 4 on my setup; ls3 tube in front, l92 in rear, semi rigged setup to connect the two for now. Will be going with something like this later to clean things up:
http://www.krcpower.com/catalog_i112...l?catId=366482
Reply
Old Sep 6, 2011 | 10:39 AM
  #11  
Reckless's Avatar
Super Moderator
20 Year Member
iTrader: (9)
 
Joined: Nov 2001
Posts: 10,060
Likes: 33
From: Canton, GA
Default

Or: http://www.kurturbanperformance.com/...or-system.html
Reply
Old Sep 6, 2011 | 05:34 PM
  #12  
samckitt's Avatar
Thread Starter
TECH Enthusiast
20 Year Member
Photogenic
Liked
iTrader: (5)
 
Joined: Dec 2005
Posts: 535
Likes: 9
From: Williamsburg, VA
Default

I'm definetly not going to cap off all 4, I would rather have too much than not enough.

I think I'll try the F body one and clearance the intake a bit for it. Anyone have a P/N?


Thanks
Reply
Old Sep 6, 2011 | 09:19 PM
  #13  
bwirolla64's Avatar
Launching!
 
Joined: Jun 2011
Posts: 244
Likes: 0
From: Walnut Creek, ca
Default

So looking at the link from reckless how do you install it? Does the nipple pop on or do you have to remove the piece? I looked at the back of my LS3 and there is an open threaded hole for the bolt but where the steam port is it looks like a popit
Reply
Old Sep 7, 2011 | 01:07 AM
  #14  
Dillon93dillon's Avatar
On The Tree
 
Joined: Aug 2011
Posts: 151
Likes: 0
Default

Do these steam lines just need ran into a overflow bottle? Or back into the cooling system?
Reply
Old Sep 7, 2011 | 07:27 AM
  #15  
bwirolla64's Avatar
Launching!
 
Joined: Jun 2011
Posts: 244
Likes: 0
From: Walnut Creek, ca
Default

From what I have read it should go back into the system. I don't know how often it releases but I would think often and if so then just a bottle would fill up quick.
Reply
Old Sep 7, 2011 | 10:29 AM
  #16  
Dillon93dillon's Avatar
On The Tree
 
Joined: Aug 2011
Posts: 151
Likes: 0
Default

Okay. That's how I'll do it then
Reply
Old Sep 7, 2011 | 10:39 AM
  #17  
1A Dan's Avatar
On The Tree
iTrader: (9)
 
Joined: Sep 2009
Posts: 158
Likes: 0
From: MA
Default

the cheapest ones i found will require adapters to get to AN, but may still be worthwhile for some:
http://s41657.storefront-solutions.c...l.aspx?ID=3289
Reply
Old Sep 7, 2011 | 10:43 AM
  #18  
bjamick's Avatar
TECH Veteran
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (31)
 
Joined: May 2006
Posts: 4,218
Likes: 3
From: Birmingham AL.
Default

I used the 98-00 steam tubes on my 99 with ls6 intake. Just grind down the ribbing under the intake. This way it gets coolant to front and back of head, no hot spots.
Reply
Old Sep 7, 2011 | 10:50 AM
  #19  
lxwithlaundry's Avatar
Staging Lane
 
Joined: Aug 2011
Posts: 64
Likes: 0
From: South Carolina
Default

what if i'm using a radiator that doesn't have the lines for the hook up to the vents? can i just T it into the over flow on the radiator?
Reply
Old Sep 7, 2011 | 12:06 PM
  #20  
bwirolla64's Avatar
Launching!
 
Joined: Jun 2011
Posts: 244
Likes: 0
From: Walnut Creek, ca
Default

I don't have a fitting on my radiator but I am welding a fitting in or like some of the other guys have drilled and tapped there water pump! But they have debated on which is better water pump or radiator
Reply



All times are GMT -5. The time now is 08:44 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