The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > Info Center > FAQ Truck Tech > Engine and Drivetrain > LSx Related

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-09-2015, 10:16 PM   #1
Gord67
Registered User
 
Join Date: Jan 2015
Location: Edmonton, AB
Posts: 22
LS Steam tube routing

I've been doing some googling on the best way to re-route the steam tube on a LS swap and someone said to drill and tap the thermostat cover and hook the tube there..?? Has anyone else ever heard of this ?? Any other suggestions ? It seems like the majority drill and tap the water pump...!!
Gord67 is offline   Reply With Quote
Old 03-10-2015, 12:16 AM   #2
Heavymetl
Registered User
 
Join Date: Feb 2012
Location: Southern Ohio
Posts: 252
Re: LS Steam tube routing

Indeed, drill and tap the water pump is one of several solutions.

You can also use a later model radiator with the steam tube inlet (and correct size hoses to match the smaller LS inlet/outlet), or weld in a port on the radiator side tanks.

For my C10 LS swap, I used an F-body water pump and Dirty Dingo spacers that already included a tapped fitting for the steam line.
Heavymetl is offline   Reply With Quote
Old 03-10-2015, 01:30 AM   #3
hotrodsinner
Registered User
 
hotrodsinner's Avatar
 
Join Date: Dec 2011
Location: Hanford,ca
Posts: 189
Re: LS Steam tube routing

You could also use the dorman fitting that ties into the 3/4" heater hose. Easy and cheap.
hotrodsinner is offline   Reply With Quote
Old 03-10-2015, 10:31 AM   #4
70cst
Senior Member
 
70cst's Avatar
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 19,351
Re: LS Steam tube routing

Quote:
Originally Posted by Gord67 View Post
I've been doing some googling on the best way to re-route the steam tube on a LS swap and someone said to drill and tap the thermostat cover and hook the tube there..?? Has anyone else ever heard of this ?? Any other suggestions ? It seems like the majority drill and tap the water pump...!!
What year is your truck ....
__________________
A husband can be right...or...A husband can be happy.

67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk.

1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc

JOHN 17:3...The better side of "LIFE"


Remember: Everyday is a good day...Some are just gooder!
70cst is offline   Reply With Quote
Old 03-10-2015, 11:50 AM   #5
88Ironduke
Registered User
 
Join Date: Jul 2010
Location: Willingboro, NJ
Posts: 457
Re: LS Steam tube routing

On another project LS we plumbed the steam vent right into the top radiator hose via inline sensor adapter in the hose, add a 90' fitting to clean up the vent hose, two spiffy looking clamps and it works as advertised. We looked at the options and our water pump housing on our 5.3 had the integrated thermostat assembly from the factory (poor design) so if we drilled and tapped the housing would not be a salvageable core in the event it had to be pulled.

Paul
__________________
Retired USAF - No rockets, no mortars, no bad guys shooting...No stress!!!

My Build Thread: Project 72' Green
http://67-72chevytrucks.com/vboard/s...d.php?t=587932
88Ironduke is offline   Reply With Quote
Old 03-10-2015, 12:51 PM   #6
hotrodsinner
Registered User
 
hotrodsinner's Avatar
 
Join Date: Dec 2011
Location: Hanford,ca
Posts: 189
Re: LS Steam tube routing

Dorman part #47112. Splices into youre 3/4" heater hose line and has a 1/4" hose barb for the steam line. Works and is the easiest solution.
hotrodsinner is offline   Reply With Quote
Old 03-10-2015, 01:55 PM   #7
cooperhw
Registered User
 
cooperhw's Avatar
 
Join Date: Oct 2014
Location: Mesa AZ (Near Phoenix)
Posts: 2,276
Re: LS Steam tube routing

I drilled an 1/8" pipe size hole right in the top of the water pump below the hose. Then tapped it to accept a brass fitting that was 1/8" male pipe thread on one side and barbed end on the other (got it at Ace hardware). Then you take the line coming out of the drivers side head and attach it to the barb. Simple.
I have a late model (new) radiator that has a port for this hose and still did this as it cleans it up a bit.
Oh yeah, it's in a 67 Chevelle if that matters.
__________________
"Life is too short to drive a boring vehicle".
Later,
Wayne
cooperhw is offline   Reply With Quote
Old 08-20-2017, 07:53 PM   #8
Liltroy
Registered User
 
Liltroy's Avatar
 
Join Date: Sep 2014
Location: Knoxville,Tn
Posts: 497
Re: LS Steam tube routing

Old thread but new video explanation https://www.youtube.com/watch?v=curX7m9BPeg
Posted via Mobile Device
Liltroy is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com