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 09-08-2019, 08:09 PM   #1
Worldofhurts
Registered User
 
Join Date: Mar 2015
Location: Henderson, Nevada
Posts: 22
LS Swap Radiator help for my '67 C10

Ok, I know it's another question but first let me say thank you in advance for the help.
I have 6.0 and 4l80e out of a 2005 Silverado and not planning on any Horsepower mods. I want to hook up the tranny lines, steam line and electric fans to a stock radiator that will work on my LS Swap. Does anyone know what year/vehicle radiator/fan assembly I should be looking for that will drop in or if not a complete drop in what modifications are needed to get it going. Part numbers if you have used them would be great.

Thanks
Worldofhurts is offline   Reply With Quote
Old 09-08-2019, 09:45 PM   #2
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,557
Re: LS Swap Radiator help for my '67 C10

a stock v8/auto radiator will be just fine...use the biggest fans you can fit that will cover the radiator...no mods needed...the steam can be plumbed into the water pump or top radiator hose
__________________
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 09-09-2019, 12:30 AM   #3
Worldofhurts
Registered User
 
Join Date: Mar 2015
Location: Henderson, Nevada
Posts: 22
Re: LS Swap Radiator help for my '67 C10

When you say stock are you talking 67-72 or 2005 like the engine it came from and it will fit. Sorry for this is my first swap and talking with people has got me even more confused and is why I came to the forum. I've had some say make sure it's a dual pass some say it doesn't matter some say single pass will work. Some say 3 core others say 4 core cause we live in Vegas and it's hot. The problem is all the great wizards here don't own a classic truck or have done a LS swap.
Worldofhurts is offline   Reply With Quote
Old 09-09-2019, 12:39 AM   #4
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,557
Re: LS Swap Radiator help for my '67 C10

yeah, but yall have dry heat don't ya?...haha...
im saying the stock 67 radiator in good shape should be good enough..be sure to shroud the fans..on my 81 6.0 swap I used the stock radiator ...but I did buy a new one from oreillys...its a single wide core aluminum .....my fans are programmed for #1 at 175* ..#2 at 185*....my truck never runs over 185-190...and that's pulling well over 9000lbs loaded trailer in 95+temps
more radiator wont hurt though if your worried about it
__________________
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 09-09-2019, 10:00 AM   #5
MDPotter
Senior Member
 
MDPotter's Avatar
 
Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
Re: LS Swap Radiator help for my '67 C10

If you go with a stock replacement 67 radiator, how do you go about attaching a fan and shrouds? I'm still trying to figure out what I'm going to do for a radiator. Right now I'm leaning towards a Cold Case stock replacement with fans, but I could save a little money by going with a 67 replacement.

If money were no issue, I would buy an Entropy.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632
1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047
1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184
1978 Chevy Scottsdale K20
1993 Chevy C1500 - 5.3/T56 swapped
2008 Silverado Duramax
MDPotter is offline   Reply With Quote
Old 09-09-2019, 10:23 AM   #6
Pillow
Registered User
 
Pillow's Avatar
 
Join Date: Apr 2006
Location: Warrenton VA
Posts: 144
Re: LS Swap Radiator help for my '67 C10

'71 here but yes, the stock radiator works just fine.

I run mechanical fan w/o shroud. Worked fine even in TX heat for a year.
__________________
'71 C-10 with 5.3 LS2 cam & NWC T5 - Patina King!
'83 Jeep Cherokee w 5.3 LS9 cam & SM465 NP208 swap in progress
'92 Volvo 960 wagon w 5.3 LS7 cam & WC T5 swap in progress
'79 Porsche 911 SC
'48 Spartan Mansion 30' travel trailer
'10 Porsche Cayenne S - Daily
Pillow is offline   Reply With Quote
Old 09-09-2019, 11:24 AM   #7
dayj1
Senior Member
 
Join Date: Jul 2009
Location: Athens, AL
Posts: 499
Re: LS Swap Radiator help for my '67 C10

Quote:
Originally Posted by MDPotter View Post
If you go with a stock replacement 67 radiator, how do you go about attaching a fan and shrouds?
Here's a couple of pics of one of my swaps. It's pretty easy to make a shroud for one of these old trucks. http://67-72chevytrucks.com/vboard/s...69&postcount=6
dayj1 is offline   Reply With Quote
Old 09-09-2019, 11:34 AM   #8
MDPotter
Senior Member
 
MDPotter's Avatar
 
Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
Re: LS Swap Radiator help for my '67 C10

I've got a PM out to a member (HSRacer) who installed a late model radiator with aftermarket shroud/fans in his. I'll let you know when I hear back.

I like the idea of installing a late model radiator, but there are fitment challenges as it seems most of the late model trucks (99-06) have radiators that are too wide to fit in the core support, but they have the steam port and trans coolers. The other difficulty with the late model radiators is that they don't have caps - you have to use the late model style overflow and fill it through there.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632
1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047
1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184
1978 Chevy Scottsdale K20
1993 Chevy C1500 - 5.3/T56 swapped
2008 Silverado Duramax
MDPotter is offline   Reply With Quote
Old 09-09-2019, 07:51 PM   #9
Worldofhurts
Registered User
 
Join Date: Mar 2015
Location: Henderson, Nevada
Posts: 22
Re: LS Swap Radiator help for my '67 C10

Keep me in the loop. I would really love to see what is all involved in installing a late model with a reservoir. If anyone has pics please post them.
Worldofhurts is offline   Reply With Quote
Old 09-10-2019, 09:50 AM   #10
Pillow
Registered User
 
Pillow's Avatar
 
Join Date: Apr 2006
Location: Warrenton VA
Posts: 144
Re: LS Swap Radiator help for my '67 C10

Look at JagsThatRun for upper radiator hose couplers that have integrated steam ports and vents. Easy.

Note: With the stock vented style system you can run green death coolant. When you go full sealed with expansion tank then you can use Dex-Cool. IDK if this is a concern to anyone, but just let you know if you have a preference.

IMO if you aren't building a show car then keep it simple. KISS. The ~$500 conversion radiators are laughable for most streeters.
__________________
'71 C-10 with 5.3 LS2 cam & NWC T5 - Patina King!
'83 Jeep Cherokee w 5.3 LS9 cam & SM465 NP208 swap in progress
'92 Volvo 960 wagon w 5.3 LS7 cam & WC T5 swap in progress
'79 Porsche 911 SC
'48 Spartan Mansion 30' travel trailer
'10 Porsche Cayenne S - Daily
Pillow is offline   Reply With Quote
Old 09-10-2019, 10:12 AM   #11
MDPotter
Senior Member
 
MDPotter's Avatar
 
Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
Re: LS Swap Radiator help for my '67 C10

Quote:
Originally Posted by Pillow View Post
Look at JagsThatRun for upper radiator hose couplers that have integrated steam ports and vents. Easy.

Note: With the stock vented style system you can run green death coolant. When you go full sealed with expansion tank then you can use Dex-Cool. IDK if this is a concern to anyone, but just let you know if you have a preference.

IMO if you aren't building a show car then keep it simple. KISS. The ~$500 conversion radiators are laughable for most streeters.
What do you mean, "laughable"? And are you talking about LS radiators?

I have a spreadsheet to compare several radiator manuf's and there are basically three price points. These are all radiator/fan/shroud combos:
-$300-$350 (Champion/American eagle, Auto City Classic)
-$600 (Cold Case)
-$850-$1,100 (Entropy, Dewitts, Griffin)

I have trouble believing that a $1,000 setup is that much better than a $350 setup because the late model pickups and SUV's have setups that cost about $350 and they work just fine. The dismantler I bought my engine from threw in a set of late model fans for free, but they're meant for a late model radiator that measures 41" from tank ends which is too wide to fit in the core support.

I posted a separate thread asking for reviews of the American Eagle setups. It doesn't have a steam port, but does have a trans cooler, fans, and shroud.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632
1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047
1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184
1978 Chevy Scottsdale K20
1993 Chevy C1500 - 5.3/T56 swapped
2008 Silverado Duramax
MDPotter is offline   Reply With Quote
Old 09-11-2019, 07:26 AM   #12
my kids toy
Registered User
 
Join Date: May 2018
Location: Grand Haven, mi
Posts: 270
Re: LS Swap Radiator help for my '67 C10

If thinking a cold case ls swap rad I would think twice, myself and someone else has had issues with them, they do not have tranny cooler in them anymore as well.
Both issues were with the steam port connections, then they changed design and got rid of the tranny cooler.
my kids toy is offline   Reply With Quote
Old 09-11-2019, 10:40 AM   #13
Pillow
Registered User
 
Pillow's Avatar
 
Join Date: Apr 2006
Location: Warrenton VA
Posts: 144
Re: LS Swap Radiator help for my '67 C10

Quote:
Originally Posted by MDPotter View Post
What do you mean, "laughable"? And are you talking about LS radiators?
Sorry I should have added clarity there.

What I mean is why pay for a conversion or even AL radiator when the stock 67-72 units provide enough cooling capacity for an LS swap.

I worried about this issue needlessly while doing my swap years ago. When the fact is the stock radiator is 100% for daily use in hot or cold weather. Mine spends half its life loaded up, so this isn't a light duty trailer queen by any means that doesn't see work.

I point here is just to save the next guy some $ that could be spent elsewhere on the build.
__________________
'71 C-10 with 5.3 LS2 cam & NWC T5 - Patina King!
'83 Jeep Cherokee w 5.3 LS9 cam & SM465 NP208 swap in progress
'92 Volvo 960 wagon w 5.3 LS7 cam & WC T5 swap in progress
'79 Porsche 911 SC
'48 Spartan Mansion 30' travel trailer
'10 Porsche Cayenne S - Daily
Pillow is offline   Reply With Quote
Old 09-11-2019, 10:45 AM   #14
MDPotter
Senior Member
 
MDPotter's Avatar
 
Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
Re: LS Swap Radiator help for my '67 C10

Quote:
Originally Posted by Pillow View Post
Sorry I should have added clarity there.

What I mean is why pay for a conversion or even AL radiator when the stock 67-72 units provide enough cooling capacity for an LS swap.

I worried about this issue needlessly while doing my swap years ago. When the fact is the stock radiator is 100% for daily use in hot or cold weather. Mine spends half its life loaded up, so this isn't a light duty trailer queen by any means that doesn't see work.

I point here is just to save the next guy some $ that could be spent elsewhere on the build.
I appreciate the feedback for sure and I agree that the stock radiator is up to the task. I just don't have any knowledge of how to install a set of fans on a radiator which is why I've been searching for a package radiator/fans setup. I have no problem buying a stock replacement for $180 and putting fans on it if I know what fans/shroud to buy and how to attach them. Do you have some advice on that? I'm looking at Spectra Premium CU369 from Rock Auto (same part number regardless of the engine) which has a trans cooler.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632
1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047
1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184
1978 Chevy Scottsdale K20
1993 Chevy C1500 - 5.3/T56 swapped
2008 Silverado Duramax
MDPotter is offline   Reply With Quote
Old 09-11-2019, 11:05 AM   #15
1971Stepside
Almost Satisfied
 
1971Stepside's Avatar
 
Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,926
Re: LS Swap Radiator help for my '67 C10

Quote:
If thinking a cold case ls swap rad I would think twice, myself and someone else has had issues with them, they do not have tranny cooler in them anymore as well.
Both issues were with the steam port connections, then they changed design and got rid of the tranny cooler.
This ^^
__________________
1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
1971Stepside is offline   Reply With Quote
Old 09-11-2019, 11:22 AM   #16
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,557
Re: LS Swap Radiator help for my '67 C10

they told me to get the biggest fans i could that would cover the radiator...so i searched summit and picked out just that...then i put the stock shroud over them.....on the IH i used the stock shroud and a single fan ..16in i believe...you can see how i did it in the IH build...https://67-72chevytrucks.com/vboard/...750501&page=28 .. in post 690
you could always run the pump mounted fan ..if it lines up with the shroud...mine did not...thats why i went electric....also while searching ..ive been told the curved blade fans are quiter than the straight blade fans....i know on my 81 that when both fans are running ,and its idling ,they are pretty noisy
__________________
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 09-11-2019, 11:29 AM   #17
MDPotter
Senior Member
 
MDPotter's Avatar
 
Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
Re: LS Swap Radiator help for my '67 C10

I found these fans/shroud on eBay. They are supposed to fit Champion/American Eagle as well as stock replacements. I cross-referenced the shroud dimensions to the Spectra radiator and it should work. These fans look to be the same fans that come on the $350 American Eagle radiator/fan combo.

https://www.ebay.com/itm/ALUMINUM-RA...4AAOSw7XNc0cUh

So is there any reason to go with the Spectra/eBay combo over the American Eagle package? They come out to the same cost.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632
1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047
1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184
1978 Chevy Scottsdale K20
1993 Chevy C1500 - 5.3/T56 swapped
2008 Silverado Duramax
MDPotter is offline   Reply With Quote
Old 09-11-2019, 03:18 PM   #18
Pillow
Registered User
 
Pillow's Avatar
 
Join Date: Apr 2006
Location: Warrenton VA
Posts: 144
Re: LS Swap Radiator help for my '67 C10



This works.
__________________
'71 C-10 with 5.3 LS2 cam & NWC T5 - Patina King!
'83 Jeep Cherokee w 5.3 LS9 cam & SM465 NP208 swap in progress
'92 Volvo 960 wagon w 5.3 LS7 cam & WC T5 swap in progress
'79 Porsche 911 SC
'48 Spartan Mansion 30' travel trailer
'10 Porsche Cayenne S - Daily
Pillow is offline   Reply With Quote
Old 09-11-2019, 04:20 PM   #19
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,557
Re: LS Swap Radiator help for my '67 C10

^^^ it works if itll line up with the shroud^^^^....mine didnt..fan sat lower than shroud by 3-4 inches
__________________
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 09-12-2019, 08:37 AM   #20
19Loki67
Registered User
 
Join Date: Nov 2018
Location: Corpus Christi Tx
Posts: 23
Re: LS Swap Radiator help for my '67 C10

Champion radiators aren’t very expensive and I believe they have one for a 67 with the correct shroud and fan included.
Posted via Mobile Device
19Loki67 is offline   Reply With Quote
Old 09-12-2019, 12:24 PM   #21
Pillow
Registered User
 
Pillow's Avatar
 
Join Date: Apr 2006
Location: Warrenton VA
Posts: 144
Re: LS Swap Radiator help for my '67 C10

Quote:
Originally Posted by mongocanfly View Post
^^^ it works if itll line up with the shroud^^^^....mine didnt..fan sat lower than shroud by 3-4 inches
As said before. I don't run a shroud either as it does not line up w factory C10 tupperware.

It works even though not "optimal". TX heat tested for a year and ~5 years of going strong as proof. Note: I don't do stop and go traffic though, if you are in the city you may need shrouds.

I'm also waiting for my NWC T5 to explode behind an LS that is impossible to do according to the internet... So take everything you read with a grain of salt.
__________________
'71 C-10 with 5.3 LS2 cam & NWC T5 - Patina King!
'83 Jeep Cherokee w 5.3 LS9 cam & SM465 NP208 swap in progress
'92 Volvo 960 wagon w 5.3 LS7 cam & WC T5 swap in progress
'79 Porsche 911 SC
'48 Spartan Mansion 30' travel trailer
'10 Porsche Cayenne S - Daily
Pillow is offline   Reply With Quote
Old 09-13-2019, 08:15 PM   #22
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,216
Re: LS Swap Radiator help for my '67 C10

I got a cold case ls swap radiator with internal trans cooler and their fan and shounds so far its awesome
__________________
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
truckdude239 is offline   Reply With Quote
Old 05-12-2021, 05:17 PM   #23
71C10-KID
Registered User
 
Join Date: Jun 2017
Location: Nanaimo BC
Posts: 1
Quote:
Originally Posted by Pillow View Post
'71 here but yes, the stock radiator works just fine.

I run mechanical fan w/o shroud. Worked fine even in TX heat for a year.
What do you do for the cold air intake then if your running mechanical fan, and also coolant hoses? Thanks
Posted via Mobile Device
71C10-KID is offline   Reply With Quote
Old 05-13-2021, 02:04 AM   #24
Low Elco
Registered User
 
Join Date: Apr 2003
Location: Indep, MO
Posts: 5,893
Re: LS Swap Radiator help for my '67 C10

I just had to trash a 1 yr old giant Griffin due to leaks at all 4 corners. Don't ask unless you're prepared for USN level profanity. Got on here and did some searchin', and a Spectra Premium 1998 v6 C1500 radiator fits right in the factory small radiator biscuits. Even has the right hoses for an LS. Runs right on 190/200 so far. 2 big Derale fans in a derale shroud, just fab tabs to tag it over to the factory shroud mounts. 169 bucks, cheaper yet on Rockauto. Very happy so far.
Low Elco is offline   Reply With Quote
Old 05-17-2021, 12:23 PM   #25
verdell
Registered User
 
verdell's Avatar
 
Join Date: Feb 2013
Location: Columbus, MS
Posts: 433
Re: LS Swap Radiator help for my '67 C10

Quote:
Originally Posted by Low Elco View Post
I just had to trash a 1 yr old giant Griffin due to leaks at all 4 corners. Don't ask unless you're prepared for USN level profanity. Got on here and did some searchin', and a Spectra Premium 1998 v6 C1500 radiator fits right in the factory small radiator biscuits. Even has the right hoses for an LS. Runs right on 190/200 so far. 2 big Derale fans in a derale shroud, just fab tabs to tag it over to the factory shroud mounts. 169 bucks, cheaper yet on Rockauto. Very happy so far.
Same thing happened with my big Griffin radiator. Their stuff is straight garbage.
verdell 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 12:53 AM.


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