Ls swap radiators? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Motoxrrar · 03-21-2014, 04:17 AM

Hey guys I am looking for some ideas of a radiator for my ls swap.

I would really like to have a radiator, trans, engine oils all together in one unit.
Anyone done that yet?
What's the best thing to do?
I have a/c and don't want a bunch of coolers bunched up behind the grill.

Post pics and links if you have a good suggestion.

72 GMC Sierra Grande

Andy4639 · 03-21-2014, 04:53 AM

Go to the LSx swap section there is a ton of info there.

jamesjones · 03-22-2014, 02:40 AM

This is what I plan on running in my Blazer...

http://www.summitracing.com/parts/gr...t/model/blazer

JJH Jimmy · 03-22-2014, 09:01 AM

I used an Entropy and am happy with it. http://www.entropyrad.com/radiators/...ck/cat_26.html

Motoxrrar · 03-22-2014, 09:24 AM

Good info thanks guys!

chevyguy_72 · 03-24-2014, 11:07 AM

Wondering if anyone has used this brand before? I called and they said they could build it with the LS setup with both in and out on the same side and the Trans cooler on driver side...
http://wizardcooling.com/1967-1972-c...minum-radiator

I like their shroud options:
http://wizardcooling.com/shroud-fan-...election-chart

They also have a upgraded tube option:
http://wizardcooling.com/125-tube-core-upgrade

Motoxrrar · 03-24-2014, 11:19 AM

Those look pretty nice.

desertdogg · 03-25-2014, 06:06 PM

I was wondering about this myself... Will the stock radiator not work for the LS engine?

chuckmc8 · 03-25-2014, 06:53 PM

I've used stock radiators from 67-72 with mechanical fan and stock shroud on 4 swaps and never had a cooling issue

desertdogg · 03-25-2014, 08:36 PM

Thanks chuck, I guess I need to get a shroud

**truckdude239** · 03-25-2014, 08:44 PM

Mine stock rad was shot and couldnt be fixex a stock replcment was 220 buxs local so i ordered thr giffin ls swap rad for 268 buxs

desertdogg · 03-25-2014, 08:58 PM

Quote:

Originally Posted by truckdude239

Mine stock rad was shot and couldnt be fixex a stock replcment was 220 buxs local so i ordered thr giffin ls swap rad for 268 buxs

thanks truckdude, I think my radiator is good...not leaking or anything so I think Im ok...just depends on those shrouds, if they are expensive then I will probably get one of those griffins...did you have to put a fan on yours ?

rcrahn · 03-25-2014, 10:44 PM

When shoppin for an LSx swap radiator I wanted 4 things

1. Made in USA - turned out to be hard to find
2. Inlet and outlet on passenger side. Hate that giant hose across the front of motor. Looks ugly!
3. Aluminum construction
4. Reasonable price

I ended up going with Griffin Dominator Series PN 8-70013-LS at Summit Racing. For a fan setup I scored a used Old Air dual fan setup from CL. Very nice piece. Having a 1967 core support this presented a little bit of a fit issue for the radiator. It's a smidge too tall. But with some fabrication everything worked out.

desertdogg · 03-25-2014, 11:09 PM

Quote:

Originally Posted by rcrahn

When shoppin for an LSx swap radiator I wanted 4 things

1. Made in USA - turned out to be hard to find
2. Inlet and outlet on passenger side. Hate that giant hose across the front of motor. Looks ugly!
3. Aluminum construction
4. Reasonable price

I ended up going with Griffin Dominator Series PN 8-70013-LS at Summit Racing. For a fan setup I scored a used Old Air dual fan setup from CL. Very nice piece. Having a 1967 core support this presented a little bit of a fit issue for the radiator. It's a smidge too tall. But with some fabrication everything worked out.

So griffin is not made in the USA ? sounds like a fan set up is needed ?

rcrahn · 03-25-2014, 11:44 PM

griffin is made in usa. Yes, a fan setup is needed. You have several options.

**truckdude239** · 03-26-2014, 01:44 AM

Yea i used a set of 14 inchs eclectric fans from my kocal auto part store

mattcrp1 · 04-13-2014, 05:14 PM

Can the stock 2002 truck radiator be used?

littlevictories · 04-14-2014, 12:24 AM

yeah but it's really wide…like 32" or so. i used a griffin ls swap rad for a '69 camaro

desertdogg · 04-14-2014, 09:50 AM

Yeah I actually just baought the griffon dominator radiator and fan on summit...should arrive today as a matter of fact.

**SparkyRnD** · 04-17-2014, 09:54 AM

We also make drop-in aluminum radiators made here in the USA, and we build them for stock setups all the way to LS conversions at no additional charge. We also include a trans cooler at no additional fee (when requested). Here is a link to our vendor page here, and we are a Gold Vendor for this site:
http://67-72chevytrucks.com/vboard/s...d.php?t=590670

Make sure to let us know you are a forum member, as we offer a discount!

elf w/capital T · 07-19-2018, 07:11 AM

I'm excited to be saving up for an RnD radiator, read a ton of good reviews. They offer a 1 year warranty against manufacturing defects, and can put trans fitting in no charge, along with the steam port, relocate top right hose fitting .

Sparky, I will let you know!

**SparkyRnD** · 07-19-2018, 10:46 AM

Awesome! We look forward to building your rad!

**MidLifer** · 07-21-2018, 06:20 PM

My RnD rad keeps my LQ4 running cool - +1 for Sparky.

jessemthompson · 07-24-2018, 06:17 PM

I would stay far far away from Griffin radiators. I had 2 in my truck in less than a 3 month period that leaked like a sieve. I replaced it with a Holley frostbite and it’s held up great so far. This is the 3rd different brand aluminum radiator I’ve had in my truck since the LS Swap and it’s lasted the longest. If you’re gonna go with any of the other brands recommended in this post, I would suggest entropy. I’ve heard nothing but good things.

Willie Makeit · 07-25-2018, 09:43 AM

ol' timey brass/copper stock 4 row cools just fine with the proper fans and shroud.

03-21-2014, 04:17 AM	#1
Motoxrrar Registered User Join Date: Feb 2014 Location: Tennessee Posts: 282	Ls swap radiators? Hey guys I am looking for some ideas of a radiator for my ls swap. I would really like to have a radiator, trans, engine oils all together in one unit. Anyone done that yet? What's the best thing to do? I have a/c and don't want a bunch of coolers bunched up behind the grill. Post pics and links if you have a good suggestion. 72 GMC Sierra Grande

03-21-2014, 04:53 AM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Ls swap radiators? Go to the LSx swap section there is a ton of info there. __________________ 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.

03-22-2014, 02:40 AM	#3
jamesjones Freakin Awesome! Join Date: Jul 2003 Location: San Diego Posts: 482	Re: Ls swap radiators? This is what I plan on running in my Blazer... http://www.summitracing.com/parts/gr...t/model/blazer __________________ 1972 K5 Blazer - LQ4/TH350/NP205 - Long Travel Suspension - Hooptee

03-22-2014, 09:01 AM	#4
JJH Jimmy Registered User Join Date: Jun 2012 Location: Schoolcraft, Michigan Posts: 922	Re: Ls swap radiators? I used an Entropy and am happy with it. http://www.entropyrad.com/radiators/...ck/cat_26.html __________________ 1972 GMC Jimmy 4x4 LS Swap 1985 Chevy K20 1994 GMC Yukon 2021 GMC 2500HD Duramax AT4 My "It's a Jimmy Thing" Build http://67-72chevytrucks.com/vboard/s...d.php?t=583528 Budget Build 1985 K20 http://67-72chevytrucks.com/vboard/s...d.php?t=801565

03-22-2014, 09:24 AM	#5
Motoxrrar Registered User Join Date: Feb 2014 Location: Tennessee Posts: 282	Re: Ls swap radiators? Good info thanks guys!

03-24-2014, 11:07 AM	#6
chevyguy_72 Vintage Evil Join Date: Aug 2005 Location: Broomfield, CO Posts: 956	Re: Ls swap radiators? Wondering if anyone has used this brand before? I called and they said they could build it with the LS setup with both in and out on the same side and the Trans cooler on driver side... http://wizardcooling.com/1967-1972-c...minum-radiator I like their shroud options: http://wizardcooling.com/shroud-fan-...election-chart They also have a upgraded tube option: http://wizardcooling.com/125-tube-core-upgrade

03-24-2014, 11:19 AM	#7
Motoxrrar Registered User Join Date: Feb 2014 Location: Tennessee Posts: 282	Re: Ls swap radiators? Those look pretty nice.

03-25-2014, 06:06 PM	#8
desertdogg Registered User Join Date: Jan 2012 Location: San Diego, Ca Posts: 249	Re: Ls swap radiators? I was wondering about this myself... Will the stock radiator not work for the LS engine? __________________ Trying to get thru my LS swap

03-25-2014, 06:53 PM	#9
chuckmc8 It's alsways something..... Join Date: Nov 2008 Location: Douglasville GA Posts: 1,171	Re: Ls swap radiators? I've used stock radiators from 67-72 with mechanical fan and stock shroud on 4 swaps and never had a cooling issue __________________ 1968 RS Camaro 'Vert Matching number 327 and M21 Muncie 1968 C10 Black with red interior and orig paint. 5.3 / 4l60e,3:73 POSI 17" Torq Thrusts 1968 CST 514 Red with black interior. Buddy Buckets, Factory A/C, PS, PB- 20" AR custom shop TT, 5.3 and 4l60e

03-25-2014, 08:36 PM	#10
desertdogg Registered User Join Date: Jan 2012 Location: San Diego, Ca Posts: 249	Re: Ls swap radiators? Thanks chuck, I guess I need to get a shroud __________________ Trying to get thru my LS swap

03-25-2014, 08:44 PM	#11
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: Ls swap radiators? Mine stock rad was shot and couldnt be fixex a stock replcment was 220 buxs local so i ordered thr giffin ls swap rad for 268 buxs __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

03-25-2014, 10:44 PM	#13
rcrahn Registered User Join Date: Jun 2007 Location: The West Posts: 767	Re: Ls swap radiators? When shoppin for an LSx swap radiator I wanted 4 things 1. Made in USA - turned out to be hard to find 2. Inlet and outlet on passenger side. Hate that giant hose across the front of motor. Looks ugly! 3. Aluminum construction 4. Reasonable price I ended up going with Griffin Dominator Series PN 8-70013-LS at Summit Racing. For a fan setup I scored a used Old Air dual fan setup from CL. Very nice piece. Having a 1967 core support this presented a little bit of a fit issue for the radiator. It's a smidge too tall. But with some fabrication everything worked out.

03-25-2014, 11:44 PM	#15
rcrahn Registered User Join Date: Jun 2007 Location: The West Posts: 767	Re: Ls swap radiators? griffin is made in usa. Yes, a fan setup is needed. You have several options.

03-26-2014, 01:44 AM	#16
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: Ls swap radiators? Yea i used a set of 14 inchs eclectric fans from my kocal auto part store __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

04-13-2014, 05:14 PM	#17
mattcrp1 Registered User Join Date: May 2010 Location: Mountain House, CA Posts: 555	Re: Ls swap radiators? Can the stock 2002 truck radiator be used? __________________ My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1



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04-14-2014, 12:24 AM	#18
littlevictories Registered User Join Date: Dec 2013 Location: Portland, Ore. Posts: 348	Re: Ls swap radiators? yeah but it's really wide…like 32" or so. i used a griffin ls swap rad for a '69 camaro

04-14-2014, 09:50 AM	#19
desertdogg Registered User Join Date: Jan 2012 Location: San Diego, Ca Posts: 249	Re: Ls swap radiators? Yeah I actually just baought the griffon dominator radiator and fan on summit...should arrive today as a matter of fact. __________________ Trying to get thru my LS swap

04-17-2014, 09:54 AM	#20
SparkyRnD Senior Member Join Date: Dec 2011 Location: acworth georgia Posts: 885	Re: Ls swap radiators? We also make drop-in aluminum radiators made here in the USA, and we build them for stock setups all the way to LS conversions at no additional charge. We also include a trans cooler at no additional fee (when requested). Here is a link to our vendor page here, and we are a Gold Vendor for this site: http://67-72chevytrucks.com/vboard/s...d.php?t=590670 Make sure to let us know you are a forum member, as we offer a discount! __________________ www.RnDFabrication.com Custom Radiators, Valve Covers and Overflow Tanks

07-19-2018, 07:11 AM	#21
elf w/capital T Registered User Join Date: Feb 2011 Location: North Carolina Posts: 994	Re: Ls swap radiators? I'm excited to be saving up for an RnD radiator, read a ton of good reviews. They offer a 1 year warranty against manufacturing defects, and can put trans fitting in no charge, along with the steam port, relocate top right hose fitting . Sparky, I will let you know!

07-19-2018, 10:46 AM	#22
SparkyRnD Senior Member Join Date: Dec 2011 Location: acworth georgia Posts: 885	Re: Ls swap radiators? Awesome! We look forward to building your rad! __________________ www.RnDFabrication.com Custom Radiators, Valve Covers and Overflow Tanks

07-21-2018, 06:20 PM	#23
MidLifer Senior Member Join Date: Apr 2011 Location: South NJ Posts: 1,257	Re: Ls swap radiators? My RnD rad keeps my LQ4 running cool - +1 for Sparky.

07-24-2018, 06:17 PM	#24
jessemthompson Registered User Join Date: Nov 2011 Location: Williamsburg, VA Posts: 956	Re: Ls swap radiators? I would stay far far away from Griffin radiators. I had 2 in my truck in less than a 3 month period that leaked like a sieve. I replaced it with a Holley frostbite and it’s held up great so far. This is the 3rd different brand aluminum radiator I’ve had in my truck since the LS Swap and it’s lasted the longest. If you’re gonna go with any of the other brands recommended in this post, I would suggest entropy. I’ve heard nothing but good things.

07-25-2018, 09:43 AM	#25
Willie Makeit Registered User Join Date: Oct 2013 Location: Alabama Posts: 1,206	Re: Ls swap radiators? ol' timey brass/copper stock 4 row cools just fine with the proper fans and shroud.

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