Radiator options - The 1947 - Present Chevrolet & GMC Truck Message Board Network

structures · 03-30-2011, 09:24 AM

I'm looking for a radiator for my 07 4.8 in my 65 C10. Would you guys share your thoughts?

I was thinking of an entropy radiator, but would you use the 67-72 ls swap radiator he offers (http://www.entropyrad.com/index.php?...d&productId=21)

or ask him to modify his 60-66 radiator? (http://www.entropyrad.com/index.php?...d&productId=15)

Or anything else? I have the original radiator for the 283, any thoughts on adapting that to the ls engine?

**Clyde65** · 03-30-2011, 10:13 AM

The 63-66 trucks only have about 25" for the radiator, you can go wider but you need to sacrifice the battery box. I used this one and it cools just fine.

http://cgi.ebay.com/ebaymotors/Chevy...Q5fAccessories

If you need any help, let me know, I put the 4.8 in my 65

Also, there is nothing wrong with your stock one if it is in good working order.

structures · 03-30-2011, 10:38 AM

I'd like to use the original. What did you do about the steam vent relief hose?

Shon · 03-30-2011, 11:44 AM

I use one out of an Fbody.

**Clyde65** · 03-30-2011, 11:59 AM

You can drill and tap the thermostat housing or you can put it in the upper rad hose using something from here...

http://www.jagsthatrun.com/Pages/Par...oseSplice.html

Shon, what year truck is yours?

Shon · 03-30-2011, 02:20 PM

Quote:

Originally Posted by clyde65

shon, what year truck is yours?

71

1966Stepside · 03-30-2011, 04:01 PM

I contacted entropy recently, and he said he could do an ls swap 63-66, but the standard radiator with those splicers would be cheaper, and then you could throw in the wiring harness
Posted via Mobile Device

structures · 03-30-2011, 04:20 PM

Quote:

Originally Posted by Shon

I use one out of an Fbody.

Like 98 - 02 f body?

structures · 03-30-2011, 04:31 PM

Quote:

Originally Posted by 1966Stepside

I contacted entropy recently, and he said he could do an ls swap 63-66, but the standard radiator with those splicers would be cheaper, and then you could throw in the wiring harness
Posted via Mobile Device

by standard radiator are you talking about the 67-72 ls radiator from entropy?

1966Stepside · 03-30-2011, 05:05 PM

No, i mean use the 63-66 radiator with the hose splices clyde65 linked. I've never used those, but maybe someone else could give you info on how well they work. Xtreme 4x4 did a rear radiator ls buggy and they tapped something on the engine to run that port to. Been a while since i saw it but im sure its on their site
Posted via Mobile Device

**Clyde65** · 03-30-2011, 05:37 PM

I have seen alot of LS swaps with the radiator hose(upper) spliced in and a fitting on there for the steam vent. I have also seen some that have drilled and tapped the water pump ( I said thermostat earlier and that was wrong). I dont have a steam port and havent had any issues, mine are blocked with the factory blocks.

harnalien · 03-30-2011, 06:03 PM

I will be using the jags that run splice/coupler deal for the steam line on mine.
Posted via Mobile Device

Big Port Jimmy 6 · 03-30-2011, 09:50 PM

I drilled and tapped the Water Pump

See the -4 hard line in the pic. Jay

**TR65** · 03-30-2011, 11:11 PM

Structures,

I run the Champion 3 row radiator from e-bay store. Stock dimensions and works very well with 6.0L. I clamped a AN bulkhead fitting and o-ring washer in the tank for the steam line.

TR

thor · 06-15-2011, 12:48 PM

back ttt for a slight hijack question ... Are the upper and lower radiator hoses the same size for LS and SBC engines? Reason: thinking about putting the Entropy LSx conversion radiator in my blazer and drive for the summer before putting in an LS engine. Thx!

Bigo Serge · 06-15-2011, 01:07 PM

I am using the entropy radiator, 67-72 ls swap radiator, it's still in the box, just haven't gotten to that part on my truck. I will post my thread soon, though.

Posted via Mobile Device

**Clyde65** · 06-15-2011, 02:15 PM

No the upper LS is about 1.3" and the lower is 1.6" I believe.

My 65 rad had 1.5" and 1.75" respectively.

BR3W CITY · 06-15-2011, 03:49 PM

I used a Be-Cool SBC radiator and some custom hoses (part #'s from Napa are listed on my build). My steam vent is tapped into one of the lines for my heater core.

thor · 06-15-2011, 07:50 PM

Quote:

Originally Posted by Clyde65

No the upper LS is about 1.3" and the lower is 1.6" I believe.

My 65 rad had 1.5" and 1.75" respectively.

This is not good news for our hero.

Guess I'll have to wait on my rad purchase. Thanks for the info sir!

**Clyde65** · 06-15-2011, 11:14 PM

you can get a custom alum rad with matching hose connections for your truck.

thor · 06-24-2011, 12:04 PM

Here's some info I found...

LS has 1-1/4" top & 1-1/2" bottom rad hoses
SBC has 1-1/2" top & 1-3/4" bottom rad hoses

03-30-2011, 09:24 AM	#1
structures Registered User Join Date: Nov 2009 Location: OK Posts: 274	Radiator options I'm looking for a radiator for my 07 4.8 in my 65 C10. Would you guys share your thoughts? I was thinking of an entropy radiator, but would you use the 67-72 ls swap radiator he offers (http://www.entropyrad.com/index.php?...d&productId=21) or ask him to modify his 60-66 radiator? (http://www.entropyrad.com/index.php?...d&productId=15) Or anything else? I have the original radiator for the 283, any thoughts on adapting that to the ls engine? __________________ Robert 1965 Chevy C10 http://67-72chevytrucks.com/vboard/s...d.php?t=374373 1997 Chevy K2500 6.5 diesel

03-30-2011, 10:13 AM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Radiator options The 63-66 trucks only have about 25" for the radiator, you can go wider but you need to sacrifice the battery box. I used this one and it cools just fine. http://cgi.ebay.com/ebaymotors/Chevy...Q5fAccessories If you need any help, let me know, I put the 4.8 in my 65 Also, there is nothing wrong with your stock one if it is in good working order. __________________ 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!* Last edited by Clyde65; 03-30-2011 at 10:14 AM.

03-30-2011, 10:38 AM	#3
structures Registered User Join Date: Nov 2009 Location: OK Posts: 274	Re: Radiator options I'd like to use the original. What did you do about the steam vent relief hose? __________________ Robert 1965 Chevy C10 http://67-72chevytrucks.com/vboard/s...d.php?t=374373 1997 Chevy K2500 6.5 diesel

03-30-2011, 11:44 AM	#4
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Re: Radiator options I use one out of an Fbody. __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap

03-30-2011, 11:59 AM	#5
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Radiator options You can drill and tap the thermostat housing or you can put it in the upper rad hose using something from here... http://www.jagsthatrun.com/Pages/Par...oseSplice.html Shon, what year truck is yours? __________________ 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!* Last edited by Clyde65; 03-30-2011 at 12:03 PM.

03-30-2011, 04:01 PM	#7
1966Stepside Registered User Join Date: Feb 2011 Location: North, AL Posts: 135	Re: Radiator options I contacted entropy recently, and he said he could do an ls swap 63-66, but the standard radiator with those splicers would be cheaper, and then you could throw in the wiring harness Posted via Mobile Device __________________ Truck Pics http://s886.photobucket.com/albums/a...ew%20Purchase/ Last edited by 1966Stepside; 03-30-2011 at 04:15 PM.

03-30-2011, 05:05 PM	#10
1966Stepside Registered User Join Date: Feb 2011 Location: North, AL Posts: 135	Re: Radiator options No, i mean use the 63-66 radiator with the hose splices clyde65 linked. I've never used those, but maybe someone else could give you info on how well they work. Xtreme 4x4 did a rear radiator ls buggy and they tapped something on the engine to run that port to. Been a while since i saw it but im sure its on their site Posted via Mobile Device __________________ Truck Pics http://s886.photobucket.com/albums/a...ew%20Purchase/

03-30-2011, 05:37 PM	#11
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Radiator options I have seen alot of LS swaps with the radiator hose(upper) spliced in and a fitting on there for the steam vent. I have also seen some that have drilled and tapped the water pump ( I said thermostat earlier and that was wrong). I dont have a steam port and havent had any issues, mine are blocked with the factory blocks. __________________ 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!*

03-30-2011, 06:03 PM	#12
harnalien TruckincrazY Join Date: May 2004 Location: Haslet, TX Posts: 493	Re: Radiator options I will be using the jags that run splice/coupler deal for the steam line on mine. Posted via Mobile Device __________________ My build thread - '84 2wd w/ a 6.0 swap http://67-72chevytrucks.com/vboard/s...d.php?t=433595

03-30-2011, 09:50 PM	#13
Big Port Jimmy 6 Addicted to Rust Join Date: Dec 2009 Location: Abbeville SC Posts: 1,030	Re: Radiator options I drilled and tapped the Water Pump See the -4 hard line in the pic. Jay __________________ Current trucks: (48 GMC100 320 inliner) Gone (48 Suburban in pieces) Sold 87 GMC CCSB 5.3 4l60E Daily Driver ECTA National record holder XO/PP We never really grow up, we just learn how to act in public.

03-30-2011, 11:11 PM	#14
TR65 Senior Member Join Date: Nov 2007 Location: Greenville, SC Posts: 873	Re: Radiator options Structures, I run the Champion 3 row radiator from e-bay store. Stock dimensions and works very well with 6.0L. I clamped a AN bulkhead fitting and o-ring washer in the tank for the steam line. TR Attached Images __________________ 1965 C10 SWB Fleet Two owner LS2 Swap Thread http://67-72chevytrucks.com/vboard/s...d.php?t=413880

06-15-2011, 12:48 PM	#15
thor Registered User Join Date: Apr 2008 Location: Redmond, WA Posts: 679	Re: Radiator options back ttt for a slight hijack question ... Are the upper and lower radiator hoses the same size for LS and SBC engines? Reason: thinking about putting the Entropy LSx conversion radiator in my blazer and drive for the summer before putting in an LS engine. Thx! __________________ 1972 Chevy Blazer CST.....Project: Polished Turd

06-15-2011, 01:07 PM	#16
Bigo Serge Registered User Join Date: Dec 2009 Location: Wichita, ks Posts: 59	Re: Radiator options I am using the entropy radiator, 67-72 ls swap radiator, it's still in the box, just haven't gotten to that part on my truck. I will post my thread soon, though. Posted via Mobile Device __________________ Pick'em up, lay'em down, Oh Yeahhh

06-15-2011, 02:15 PM	#17
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Radiator options No the upper LS is about 1.3" and the lower is 1.6" I believe. My 65 rad had 1.5" and 1.75" respectively. __________________ 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!*

06-15-2011, 03:49 PM	#18
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Radiator options I used a Be-Cool SBC radiator and some custom hoses (part #'s from Napa are listed on my build). My steam vent is tapped into one of the lines for my heater core. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD



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06-15-2011, 11:14 PM	#20
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Radiator options you can get a custom alum rad with matching hose connections for your truck. __________________ 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!*

06-24-2011, 12:04 PM	#21
thor Registered User Join Date: Apr 2008 Location: Redmond, WA Posts: 679	Re: Radiator options Here's some info I found... LS has 1-1/4" top & 1-1/2" bottom rad hoses SBC has 1-1/2" top & 1-3/4" bottom rad hoses __________________ 1972 Chevy Blazer CST.....Project: Polished Turd

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