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 > 47 - Current classic GM Trucks > The 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-23-2020, 12:49 AM   #1
Laid_Out_50
Registered User
 
Laid_Out_50's Avatar
 
Join Date: Aug 2009
Location: Bay Area Cali
Posts: 270
What Radiator for LS Swap

I just finished up my LS 6.0L swaps do need a new radiator. I previously had a Buick 401 engine but I don’t remember what size radiator I had. So my question is should I run a 2,3 or 4 row radiator. Also do I want to mount the electric fan on the front or on the back of the radiator?
Laid_Out_50 is offline   Reply With Quote
Old 03-23-2020, 02:56 AM   #2
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,711
Re: What Radiator for LS Swap

I've got one of these stashed away for my 48 that I thought I'd already have running.

http://www.speedcooling.com/1948-195...-Radiator.html

It's a beast of a radiator and looks right as far as aluminum goes. Shipping weight in the box is 55 lbs so it isn't some flimsy thing

They also have the same radiator with your choice of electric fans and shroud if that is something you might need.
__________________
Founding member of the too many projects, too little time and money club.

My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
mr48chev is offline   Reply With Quote
Old 03-23-2020, 09:09 AM   #3
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,670
Re: What Radiator for LS Swap

If you had a 401 in it and it cooled it, then you should have no problem with the LS..
as far as the fan, I prefer to pull thru the radiator, not push...how much room do you have between radiator and water pump?..
Also be sure you fill the LS engine thru the top radiator hose when you hook everything up..making sure the engine is full before you hook the hose up
__________________
Mongo...aka Greg

RIP Dad
RIP Jesse

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2023 Chevy Z71..daily driver
mongocanfly is offline   Reply With Quote
Old 03-23-2020, 12:52 PM   #4
jweb
Senior Member
 
jweb's Avatar
 
Join Date: Apr 2010
Location: Oregon
Posts: 1,208
Re: What Radiator for LS Swap

You want to run a puller fan if possible, they are way more efficient. Just be sure to buy a SPAL or other high quality fan.

As far as radiators you have many options, if you still have the one from your previous engine it will cool the LS. If the stock hose locations will work, you can use a Champion radiator. If you want an LS specific radiator, I used a Superior and I'm very happy with it. See links for both below.

Champion: https://www.jegs.com/i/Champion+Cool...xoCkmcQAvD_BwE

Superior:
https://www.wwwsuperiorradiator.com/...60_chevy_truck
__________________
1951 Truck, LS1/4L60
1964 Suburban, current project
2014 Silverado daily driver
1953 Westerner "canned ham" trailer, rebuilt
1974 Prowler trailer, rebuilt
jweb is offline   Reply With Quote
Old 03-25-2020, 07:13 AM   #5
Jedema
Registered User
 
Join Date: Oct 2018
Location: Hudsonville
Posts: 11
Re: What Radiator for LS Swap

those are some gorgeous options for a radiator. My LS will be very cool with one of these baby's. Have you had to change up the Thermostat neck to make it work?
Jedema is offline   Reply With Quote
Old 03-25-2020, 09:55 AM   #6
jweb
Senior Member
 
jweb's Avatar
 
Join Date: Apr 2010
Location: Oregon
Posts: 1,208
Re: What Radiator for LS Swap

Quote:
Originally Posted by Jedema View Post
those are some gorgeous options for a radiator. My LS will be very cool with one of these baby's. Have you had to change up the Thermostat neck to make it work?
I did install a swivel housing that is pointed down. Then I just have a short 90 for a hose.
__________________
1951 Truck, LS1/4L60
1964 Suburban, current project
2014 Silverado daily driver
1953 Westerner "canned ham" trailer, rebuilt
1974 Prowler trailer, rebuilt
jweb is offline   Reply With Quote
Reply

Bookmarks


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 08:59 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com