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 > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-08-2012, 12:58 PM   #1
chevy72blu
Registered User
 
chevy72blu's Avatar
 
Join Date: Apr 2004
Location: Las Vegas, NV
Posts: 2,188
"Re-purposed" 2 core aluminum radiator?

Hey folks,

I've been asking a lot of questions lately and is one of the few that I have left.

I've decided that im for sure going to a 5.3/4l60e in my 72. Back when I was doing the big block swap, I bought a new Griffin aluminum 2 core. It has been sitting unused... At first, I thought I needed an LSX specific rad, but some google-fu has revealed that people are making the stock ones work (I have a stock 72' copper 4 core also... Which would be nice as I dont have to fab mounts).

I dont have the specs in front of me, but will the Griffin rad work? edit: Actually this is my OLD radiator which I sent back for a replacement - inlet/outlet was on the wrong side. Its the same rad only with them reversed.



Along with this fan setup (which also has been sitting unused)



I've read that I need to drill a hole for the "steam port" in the water pump. Can someone tell me what the function of this is, and is there a faq/picture thread on how to do it?

Will a standard overflow canister work or do I need something else? Now that I have fuel down (Boyd's tank, in take pump, external vette regulator), this is my last big ticket issue.


Edit again: It looks like I need both inlet and outlet on the right side? Maybe im better off just selling what I have and buying one of theses http://www.entropyrad.com/index.php?...d&productId=21

Last edited by chevy72blu; 06-08-2012 at 01:11 PM.
chevy72blu is offline   Reply With Quote
Old 06-08-2012, 01:38 PM   #2
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: "Re-purposed" 2 core aluminum radiator?

I re purposed the same be-cool that the PO had put in my truck back when it had a 355. Had to "make" some custom hoses but was easy, fits and looks pretty good.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 06-08-2012, 02:03 PM   #3
chevy72blu
Registered User
 
chevy72blu's Avatar
 
Join Date: Apr 2004
Location: Las Vegas, NV
Posts: 2,188
Re: "Re-purposed" 2 core aluminum radiator?

Quote:
Originally Posted by BR3W CITY View Post
I re purposed the same be-cool that the PO had put in my truck back when it had a 355. Had to "make" some custom hoses but was easy, fits and looks pretty good.
How did you tackle the steam port? Do you need to route it from the rad to the water pump? I figure I could always take the rad to a shop and have them install the fitting...


The entropy rig is very nice, but its way over budget unfortunately.
chevy72blu is offline   Reply With Quote
Old 06-08-2012, 05:18 PM   #4
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: "Re-purposed" 2 core aluminum radiator?

its tapped into a coolant hose on the high side, kinda hard to picture, but its not into the pump like many do. Haven't had an issue thoughl
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 06-08-2012, 10:33 PM   #5
68GMCCustom
Truck and auto performance nut
 
68GMCCustom's Avatar
 
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Re: "Re-purposed" 2 core aluminum radiator?

I'm running a copper 4 core and it keeps it cool no problem with a pair of electric fans. As for the steam vent...there was an extra port on my radiator. Not sure what it was for... but it feeds into the passenger side tank, so I'm using it for the steam vent port.

__________________
Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
68GMCCustom is offline   Reply With Quote
Old 06-09-2012, 12:44 AM   #6
awhite4557
Registered User
 
awhite4557's Avatar
 
Join Date: Dec 2007
Location: Odessa, Texas
Posts: 212
Re: "Re-purposed" 2 core aluminum radiator?

I used my original 4 row radiator and had a fitting soldered in on the top passenger side for mine. You can get this fitting from JTR (Jaguars That Run) and use it with the aluminum radiator. Hers the link http://www.jagsthatrun.com/Pages/Par...g_LSI-tee.html
Attached Images
  
__________________
1950 Chevy 3100 Ramp Bed 1-ton
http://67-72chevytrucks.com/vboard/s...d.php?t=749386
1965 Chevy Step Side
1971 Chevy Short Wide Bed
http://67-72chevytrucks.com/vboard/s...d.php?t=277191
1971 Chevy C-30 1-ton
1971 Chevy Chevelle
1972 Chevrolet C-30 1 ton
2005 Dodge Ram 2500 5.9 Cummins
2017 Fleetwood Pace Arrow 35M motorhome 350 Cummins
2020 Jeep Wrangler Unlimited Rubicon
awhite4557 is offline   Reply With Quote
Old 07-18-2012, 02:28 AM   #7
mcmlxix
Collector of Projects
 
mcmlxix's Avatar
 
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
Re: "Re-purposed" 2 core aluminum radiator?

Did you ever finalize your radiator and fans? I have been looking at the AFCO dual pass radiator with the Inlet/Outlet on the passenger side. $230 shipped. AFCO p/n: 80126N

I would have a bung for the steam vent welded into the radiator...

They say Made in USA...

__________________
Rich
1972 K5 Blazer CST Click HERE

D60 BIG BRAKE UPGRADE Click HERE
mcmlxix 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 02:34 AM.


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