LT1-LT4 Modifications 1993-97 Gen II Small Block V8

How to plug heater core lines from waterpump?

Thread Tools
 
Search this Thread
 
Old Oct 20, 2011 | 03:48 PM
  #1  
bufmatmuslepants's Avatar
Thread Starter
12 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Mar 2007
Posts: 3,280
Likes: 49
From: Hampstead, NC
Default How to plug heater core lines from waterpump?

Does everyone else just loop them or do you put a plug in the hose or crimp the outlet shut and solder it?
Reply
Old Oct 20, 2011 | 06:47 PM
  #2  
FormulaJoe's Avatar
TECH Regular
iTrader: (5)
 
Joined: Dec 2010
Posts: 497
Likes: 0
From: Too close to the cities, MN
Default

Freeze plug. Pop that nozzle out the pump and pop the plug in.
Reply
Old Oct 20, 2011 | 06:49 PM
  #3  
bufmatmuslepants's Avatar
Thread Starter
12 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Mar 2007
Posts: 3,280
Likes: 49
From: Hampstead, NC
Default

Brass freeze plug available at any autoparts store?
Reply
Old Oct 20, 2011 | 06:50 PM
  #4  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

-Loop the lines
-Remove the fittings and have them welded shut
-Remove the fittings and tap them for pipe plugs
-Remove the fittings and plug them with freeze plugs

Those are your three options.
Reply
Old Oct 20, 2011 | 06:59 PM
  #5  
FormulaJoe's Avatar
TECH Regular
iTrader: (5)
 
Joined: Dec 2010
Posts: 497
Likes: 0
From: Too close to the cities, MN
Default

Here's where the oil cooler line used to come out...
Attached Thumbnails How to plug heater core lines from waterpump?-img_1314.jpg  
Reply
Old Oct 20, 2011 | 07:04 PM
  #6  
bufmatmuslepants's Avatar
Thread Starter
12 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Mar 2007
Posts: 3,280
Likes: 49
From: Hampstead, NC
Default

Formulajoe that's a freeze plug?
Reply
Old Oct 20, 2011 | 07:09 PM
  #7  
FormulaJoe's Avatar
TECH Regular
iTrader: (5)
 
Joined: Dec 2010
Posts: 497
Likes: 0
From: Too close to the cities, MN
Default

It is, O'reillys didn't have a brass one that size or something.
Reply
Old Oct 20, 2011 | 08:21 PM
  #8  
blown97ss's Avatar
Launching!
iTrader: (8)
 
Joined: Sep 2010
Posts: 288
Likes: 4
From: west coast
Default

nice so on the lt1 we can plug the water heater lines and the oil cooler line? that would clean my eng bay up alittle
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 Oct 21, 2011 | 12:21 AM
  #9  
gjohnsonws6's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
iTrader: (12)
 
Joined: Aug 2009
Posts: 1,149
Likes: 168
From: Litchfield Park AZ
Default

I dont have an oil cooler but I used rubber caps and hose clamps.I think you can get them at any auto parts store nothing special really
Reply
Old Oct 24, 2011 | 03:17 PM
  #10  
xrambbc's Avatar
Launching!
 
Joined: Sep 2009
Posts: 240
Likes: 0
From: 5280
Default

ok so the oil cooler lines and heater lines can be removed without overheating problems? so then to blead the system you just use the one on the thrermo housing? just want to make damn sure before i remove them.
Reply
Old Oct 24, 2011 | 05:40 PM
  #11  
camaro350's Avatar
Teching In
 
Joined: Jun 2009
Posts: 14
Likes: 7
From: chesapeake, va
Default

what size of freeze plug is it?
Reply




All times are GMT -5. The time now is 11:31 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