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 03-28-2017, 05:05 PM   #1
Ryan Duke
Registered User
 
Join Date: Apr 2013
Location: Wayne, Wisconsin
Posts: 126
LS swap radiator, other than entropy and R&D

SO after alot of forum searching, it seems like people argue over entropy and r&d. Does any one have experience ordering an ls radiator from summit,jegs, speedway and mocking it up them selves? Other than a plastic radiator from the boneyard? I feel like we could save a few bucks doing it this way. I found a few radiators that seem like they fit, but I never had a stock radiator to get measurements from.
Ryan Duke is offline   Reply With Quote
Old 03-28-2017, 06:36 PM   #2
72MARIO
Registered User
 
72MARIO's Avatar
 
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,051
Re: LS swap radiator, other than entropy and R&D

I got my rad from Sparkey R&D the quality looks to be good and I have had no problems with cooling "the engine"

. I didn't do my home work and missed that on his ls swap rads the outlets are moved to the passengers side. That made for a nightmare finding hoses that fit. He was no help making suggestions on what could work. In the end 1996 jeep grand Cherokee 4.0 hoses fit great.

He did tell me the transmission cooler was moved to the drivers side. That's fine. That makes running the transmission lines a little more difficult. I got over it and the problems mounting the fan shroud.

I was very specific when I ordered it that I wanted to use the factory fan shroud and did not want to modify mounts to make it fit. Well it turns out if you have 3 core mounts the fan shroud will not fit. You need 4 Core mounts

Here is a picture of my transmission temperature without a external cooler also look at the intake air temperature to have a Idea how hot it was out side. I ended up bypassing the rad trans cooler and went with a B&M super cooler and fan kit. I have a ton of money into my 4l80E and cant risk 220+ temperatures empty cursing the hwy.
Attached Images
 
__________________
1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair
http://67-72chevytrucks.com/vboard/s...d.php?t=625017
1967 C/20 6.0/4L80 Roofing Truck
1990 V2500 Suburban "Plow Truck"
2005 TAHOE DD
72MARIO is offline   Reply With Quote
Old 03-29-2017, 10:24 PM   #3
Dustytrix
Registered User
 
Join Date: Jan 2012
Location: Petal,Ms.
Posts: 428
Re: LS swap radiator, other than entropy and R&D

I used a stock radiator from 02 camaro, it fits good. I had to drill new holes to use top mounts. But the hose locations, trans fittings, and air bleed hole for heads is where you need them.
Dustytrix is offline   Reply With Quote
Old 04-24-2017, 05:50 PM   #4
crakarjax
Registered User
 
crakarjax's Avatar
 
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by Dustytrix View Post
I used a stock radiator from 02 camaro, it fits good. I had to drill new holes to use top mounts. But the hose locations, trans fittings, and air bleed hole for heads is where you need them.
Is this the rad, and were the hose sizes matched to the LS water pump?

http://www.rockauto.com/en/moreinfo....379976&jsn=454

Thinking about this aluminum version... http://www.ebay.com/itm/3ROW-CORE-AL...BY3xa4&vxp=mtr
__________________
1968 LWB C20 / AC / Wood Bed

Last edited by crakarjax; 04-24-2017 at 06:27 PM.
crakarjax is offline   Reply With Quote
Old 03-30-2017, 12:29 AM   #5
t300
Registered User
 
Join Date: Mar 2013
Location: Manitoba
Posts: 184
Re: LS swap radiator, other than entropy and R&D

I'm using an aluminum unit from "speed daddy" on eBay. Comes with trans cooler hookups, bolted up to rad support using stock mounts. Even came with 2 electric fans although I'm still using the lq4 clutch fan. Seems to work fine. For $160 and free shipping it was worth a try and so far so good
t300 is offline   Reply With Quote
Old 03-30-2017, 09:27 AM   #6
Willie Makeit
Registered User
 
Willie Makeit's Avatar
 
Join Date: Oct 2013
Location: Alabama
Posts: 1,234
Re: LS swap radiator, other than entropy and R&D

stock 4 core.

cools fine with an AC condenser and a water-to-air intercooler heat exchanger in front of it.
Willie Makeit is offline   Reply With Quote
Old 03-30-2017, 09:58 AM   #7
LS short box
Registered User
 
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,132
Re: LS swap radiator, other than entropy and R&D

I used a Summit dual pass radiator with a 16" Spal fan on a couple of applications and they cool very nicely. External trans cooler.

The dual pass has the inlet and outlet on the passenger side for easy hose hook up.
LS short box is offline   Reply With Quote
Old 04-24-2017, 09:49 PM   #8
1970 CST Short Wide
Senior Moment
 
1970 CST Short Wide's Avatar
 
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,187
Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by Willie Makeit View Post
stock 4 core.

cools fine with an AC condenser and a water-to-air intercooler heat exchanger in front of it.
Exactly what I used. Had Rad shop change upper hose diameter and add steam port. Works perfect. No need to get exotic
__________________
1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN
2013 GMC PU, Oldest Son
71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son
2019 GMC Diesil Dually. Youngest Son
2017 Toyota SUV Daughters car
2018 Traverse , Wife’s Ride
Pittsburg Ca
94565
1970 CST Short Wide is offline   Reply With Quote
Old 04-25-2017, 07:58 AM   #9
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
Thumbs up Re: LS swap radiator, other than entropy and R&D

I haven't had any issues with the radiator at all. All aluminum and no plastic very nice unit.



http://67-72chevytrucks.com/vboard/s...d.php?t=681842
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 04-25-2017, 10:41 AM   #10
Willie Makeit
Registered User
 
Willie Makeit's Avatar
 
Join Date: Oct 2013
Location: Alabama
Posts: 1,234
Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by 1970 CST Short Wide View Post
Exactly what I used. Had Rad shop change upper hose diameter and add steam port. Works perfect. No need to get exotic
agreed. everyone is in a rush to buy an aluminum radiator and i'm not sure i understand why. copper is much better at heat transfer / thermal conductivity (by almost twice) versus aluminum and OEM style radiators are normally less expensive and require zero modifications to the truck. <shrug>
Willie Makeit is offline   Reply With Quote
Old 04-25-2017, 10:52 AM   #11
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by Willie Makeit View Post
agreed. everyone is in a rush to buy an aluminum radiator and i'm not sure i understand why.
Depending on the year of the truck being swapped, many of us never had a radiator to start, and some of our recipients never had a rad capable of supporting 2 fans or trans coolers etc.
__________________
'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 04-25-2017, 11:45 AM   #12
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
Talking Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by Willie Makeit View Post
agreed. everyone is in a rush to buy an aluminum radiator and i'm not sure i understand why. copper is much better at heat transfer / thermal conductivity (by almost twice) versus aluminum and OEM style radiators are normally less expensive and require zero modifications to the truck. <shrug>
Your not looking at the right stuff then.

My truck ran a factory radiator for years. It ran at 190*-200* all the time.

I went to the aluminum radiator and it takes a lot of heat to get it up over 180*. That's running AC full blast.
Try and find a full metal replacement radiator with no plastic in it. I'll just about bet you can't find one NEW!
I'll also say a new aluminum one will cost less than a all copper new one also if you do find it.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 04-25-2017, 12:00 PM   #13
Majourlittle
Registered User
 
Join Date: Jul 2015
Location: broken arrow
Posts: 13
Re: LS swap radiator, other than entropy and R&D

I bought the cheap aluminum radiator off of Ebay for the SBC and then bought some coolant hose adapters from a jaguar v8 swap site that fit the hose size I needed. cut off the old and welded on the new.

Cost me like $150 or so when it was done and has worked well enough. There was also a connection I used for steam that was already in the radiator.
Majourlittle is offline   Reply With Quote
Old 05-26-2017, 12:13 PM   #14
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by Willie Makeit View Post
agreed. everyone is in a rush to buy an aluminum radiator and i'm not sure i understand why. copper is much better at heat transfer / thermal conductivity (by almost twice) versus aluminum and OEM style radiators are normally less expensive and require zero modifications to the truck. <shrug>
Because two thick aluminum cores will cool much better than 4 copper cores. A 2-fat-core copper would cool even better, though. Basically you'd want a modern design with an old school implementation if you could find it. Copper conducts better but aluminum is stronger so the cores can be thinner and transfer as much/more heat, depending on who you ask.

The factory four core in my truck will NOT sufficiently cool my big block with the AC on if it's a hot day.

The aluminum two-tube with dual SPAL fans in my Camaro WILL sufficiently cool a big block all day long. Fans don't even come on until you're stopped at a light.

That's all I know. Just experience, no theory.
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 04-02-2017, 01:12 PM   #15
PEDROSKI
Registered User
 
PEDROSKI's Avatar
 
Join Date: Mar 2014
Location: Dallas tx
Posts: 138
Re: LS swap radiator, other than entropy and R&D

I used a Spectra cu730 (454 radiator) in my 76. Bought the 454 bushings and a factory 454 top plate. No issues and great fitment.
__________________
72 2wd k5 blazer

86 c10 "Red",76 2wdK5 "Bertha",77 2wdK5 "48",79 c10"Buster" GONE
PEDROSKI is offline   Reply With Quote
Old 04-02-2017, 06:05 PM   #16
jessemthompson
Registered User
 
Join Date: Nov 2011
Location: Williamsburg, VA
Posts: 960
Re: LS swap radiator, other than entropy and R&D

I'm using a Holley frostbite in my 72. It's working great so far.
jessemthompson is offline   Reply With Quote
Old 04-02-2017, 09:59 PM   #17
boynton
Registered User
 
boynton's Avatar
 
Join Date: Feb 2012
Location: Salado, Texas
Posts: 1,418
Re: LS swap radiator, other than entropy and R&D

Used a Speedway generic radiator on mine and ran external coolers for the trans and oil.
__________________
Just trying to figure this out...
1970 SWB Step-Side
http://67-72chevytrucks.com/vboard/s...d.php?t=552980 1970 LWB
http://67-72chevytrucks.com/vboard/s...d.php?t=584499
1970 SWB One Owner Step Side 6.0 LY6/6L90
http://67-72chevytrucks.com/vboard/s...d.php?t=617630 Junkyard's 1971 short wide
http://67-72chevytrucks.com/vboard/s...86#post7531186
boynton is offline   Reply With Quote
Old 04-03-2017, 09:58 AM   #18
72blu
Registered User
 
72blu's Avatar
 
Join Date: Oct 2015
Location: Toronto
Posts: 102
Re: LS swap radiator, other than entropy and R&D

I used an engineered cooling products rad that was built for our trucks and the fitment was perfect. It also came with duel electric fans. So far so good haven't really driven the truck in hot weather yet so I can't really give a total review but for now its been great, no issues.
__________________
1978 SWB cheyenne A/C, power steering/brakes, 305, Tach, Gauges
1972 SWB Custom 10, gauges, cammed LQ9, M22

72blu is offline   Reply With Quote
Old 04-03-2017, 11:36 AM   #19
suburban99
Registered User
 
suburban99's Avatar
 
Join Date: May 2014
Location: Mission BC
Posts: 452
Re: LS swap radiator, other than entropy and R&D

In my '62 5.3/4L60E I used a champion off eBay...make sure the spouts are welded and not pressed on..worked fine for me..
Attached Images
 
__________________
1962 C10 Longbox LS 5.3 4L60E----Sold$$
2014 Ram 4x4 3500 Laramie Diesel..Momma's truck
2015 Ram 4x4 1500
1997 Boxster.
1972 K10 Custom Deluxe LS 6.0
1950 GMC 3100 S10 & LS swapped
suburban99 is offline   Reply With Quote
Old 04-03-2017, 08:25 PM   #20
Street Smart
Registered User
 
Street Smart's Avatar
 
Join Date: Dec 2009
Location: Brooklyn N.Y.
Posts: 819
Re: LS swap radiator, other than entropy and R&D

Quote:
Originally Posted by Ryan Duke View Post
SO after alot of forum searching, it seems like people argue over entropy and r&d. Does any one have experience ordering an ls radiator from summit,jegs, speedway and mocking it up them selves? Other than a plastic radiator from the boneyard? I feel like we could save a few bucks doing it this way. I found a few radiators that seem like they fit, but I never had a stock radiator to get measurements from.
You can go ROCKAUTO.COM to get specs on any radiator you want. I used a stock radiator for a 96 C1500 v6 pick up perfect fit, proper hose sizes for the LS.
http://www.rockauto.com/en/moreinfo....031487&jsn=577
__________________
1967 GMC Suburban, Supercharged 6.2 LS with a 6l80e , my 11 second tow vehicle! *pic in my profile*
1987 GMC CrewCab Dually 6.0 LS/6L90e, new tow pig.

http://67-72chevytrucks.com/gallery/...=74049&cat=500
Street Smart is offline   Reply With Quote
Old 04-03-2017, 09:19 PM   #21
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: LS swap radiator, other than entropy and R&D

Champion and American Eagle!
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 04-15-2017, 11:29 PM   #22
AustinBelair
Registered User
 
Join Date: Apr 2005
Location: Austin, Texas
Posts: 300
Re: LS swap radiator, other than entropy and R&D

I need to order one ASAP. Any other suggestions? I'd love to run a crossflow but I don't think they will fit using the stock battery box location? This is a 400HP LS1 with Vintage Air and a 4l80E
__________________
My mother is a recent cancer survivor and this truck build is for her
AustinBelair is offline   Reply With Quote
Old 04-15-2017, 11:55 PM   #23
boynton
Registered User
 
boynton's Avatar
 
Join Date: Feb 2012
Location: Salado, Texas
Posts: 1,418
Re: LS swap radiator, other than entropy and R&D

eBay http://www.ebay.com/itm/351599620760

This is the one I bought and it fits well. I haven't run it yet but I don't forsee any issue with it.
__________________
Just trying to figure this out...
1970 SWB Step-Side
http://67-72chevytrucks.com/vboard/s...d.php?t=552980 1970 LWB
http://67-72chevytrucks.com/vboard/s...d.php?t=584499
1970 SWB One Owner Step Side 6.0 LY6/6L90
http://67-72chevytrucks.com/vboard/s...d.php?t=617630 Junkyard's 1971 short wide
http://67-72chevytrucks.com/vboard/s...86#post7531186
boynton is offline   Reply With Quote
Old 04-18-2017, 07:25 AM   #24
Ryan Duke
Registered User
 
Join Date: Apr 2013
Location: Wayne, Wisconsin
Posts: 126
Re: LS swap radiator, other than entropy and R&D

Because I'm running a 2010 vette motor I elected to get a 2010 vette radiator and fans but the radiator doesn't have a fill port on it so I looked at dimensions of the 2011 and 2012 vette and camaro radiators. The stock 2011 camaro radiator uses the same hoses as the vette so I bought all new hoses, cap, radiator, and fan assembly for a 2011 camaro and it will all work. I will have to cut up my core support but that doesn't bother me. But it saved me a lot. Entropy was around 850 shipped and rnd wasn't far off. I paid 440 shipped for all new stuff from rock auto, the other cool thing as previously stated was you can see what sizes they are before you buy them
Ryan Duke is offline   Reply With Quote
Old 04-18-2017, 10:13 AM   #25
scoot_mcgrute
Registered User
 
Join Date: Apr 2004
Location: Tigard, Or
Posts: 503
Re: LS swap radiator, other than entropy and R&D

I picked up a Northern radiator last year when I had the inline 6. It was cheap, not a direct fit for my 66 but it fit well, and is compatible with the LS swap I'm working on right now. Neat thing about their radiators is that they sell an electric fan setup for each one they make. My buddy has run Northern radiators in 3 of his last 4 projects with no issues.







It's P/N 209676 for anyone that is interested.
__________________
1966 Army Truck
http://67-72chevytrucks.com/vboard/s...d.php?t=691778
scoot_mcgrute 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 12:08 PM.


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