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

Nicks67C10 · 03-10-2015, 12:27 AM

I am in the process of installing a 2008 LY6 with a 600 lift cam into my 67 c10 SWB. what Rad would you guys recommend? Is there a a new car rad i can use like a camaro or does anyone know of an aftermarket drop in LS rad for a C10.

Hollow65 · 03-10-2015, 12:38 AM

Does it need to be Ls specific? I ask because I don't know. Seems odd a heat exchanger would engine specific. Summit list a lot of them, but they're demensionally specific. Tape measure handy?

Nicks67C10 · 03-10-2015, 12:41 AM

Thats why i am posting this been learning as i go and i wasn't sure if there is anything specific to worry about, or if can just run it with the old rad.

Hollow65 · 03-10-2015, 12:49 AM

Maybe the hose diameter? Other than that I don't know. A Radiator is a radiator. I'm thinking there isnt a specific radiator. Lots of Ls swaps in to drag cars and sand rails. I'm just an idiot though, there was no info on the Ls section?

Hollow65 · 03-10-2015, 12:53 AM

From quick search I think it's just the hose diameter on inlet and outlet. Also something about steam holes? Check the Ls swap Faq page. Good luck, sounds fun. Maybe Silverado hoses?

**PGSigns** · 03-10-2015, 06:50 AM

Many options on an LS swap radiator. Couple of vendors here carry or make them. LS engines have both the hoses located on the passenger side and the swap radiators tend to be double pass. The steam port provision is also made into many of them. Here is a link to Speedway showing one for your truck and many others to get some ideas on haw they are built. http://www.speedwaymotors.com/Shop/A...iators/20.html
Jimmy

cableguy0 · 03-10-2015, 09:47 PM

Im going to move this to the Ls swap section. You will likely get some helpful responses in there.

68GMCCustom · 03-10-2015, 09:52 PM

I'm running the stock 4 core.... with my LY6.

Nicks67C10 · 03-10-2015, 11:47 PM

Thanks for the help guys. has anyone released a full kit or does anyone know what hoses would work for the coolant and steam lines?

BR3W CITY · 03-11-2015, 01:35 AM

I have a be-cool radiator that was from an SBC. The top hose outlets in the wrong place for the LS motor (right side, pump outlet is on left), but it can be easily addressed with a very long top radiator hose, OR more elegantly, a hard-piped section of tubing.

Mine is stainless, and I've seen a few other members take a similar approach with stainless, aluminum, and I believe even a copper pipe. I have the hose part #'s and more pictures of the process in my build (link in my sig) if your interested.

splatrd · 03-12-2015, 08:14 AM

I don't believe all LS motors have hose inlets on the right side. I have a 2003 Silverado with 5.3 that has top hose port on top left and lower hose on lower right just like most other GM products. It has a long top hose that crosses over the top of the radiator.
I am in the process of swapping a '03 6.0 vortec into my '72 C10 and am planning on using all stock components from the Silverado for simplicity, and will likely upgrade to the electric fan set up from '05 up Silverado.

BR3W CITY · 03-12-2015, 11:13 AM

Quote:

Originally Posted by splatrd

I don't believe all LS motors have hose inlets on the right side. I have a 2003 Silverado with 5.3 that has top hose port on top left and lower hose on lower right just like most other GM products. It has a long top hose that crosses over the top of the radiator.
I am in the process of swapping a '03 6.0 vortec into my '72 C10 and am planning on using all stock components from the Silverado for simplicity, and will likely upgrade to the electric fan set up from '05 up Silverado.

All the LS water pump inlets are on the passenger side (left), tho depending exactly which w.p you have, the angle will change. SBC top hoses exit on the upper right (driver) side, which is why the crossover is needed.

You can realistically run any radiator and hose combo you want, as long as you have clearance around the fan setup, and without impedance to the intake.

Matt Cramer · 03-12-2015, 11:36 AM

I am using my stock '72 radiator with radiator hoses intended for a 2005 Silverado. I had to cut about an inch off both ends of the lower hose to make it fit, but other than that, they work great.

SparkyRnD · 03-17-2015, 08:54 AM

We make bolt in units for your truck that are hand-made and TIG welded here in the USA, using US-Sourced materials. We never use any glue, epoxy or plastic in our radiators. Also, we are a site sponsor and offer a discount for forum members.

Here is a link to the early C10 page on our website:
http://www.rndfabrication.com/C10middle.html

Contact me if you have any questions.

03-10-2015, 12:27 AM	#1
Nicks67C10 Registered User Join Date: Aug 2014 Location: Asheville NC Posts: 9	Ls swap Radiator I am in the process of installing a 2008 LY6 with a 600 lift cam into my 67 c10 SWB. what Rad would you guys recommend? Is there a a new car rad i can use like a camaro or does anyone know of an aftermarket drop in LS rad for a C10.

03-10-2015, 12:38 AM	#2
Hollow65 Registered User Join Date: Feb 2015 Location: San Diego, CA Posts: 409	Re: Ls swap Radiator Does it need to be Ls specific? I ask because I don't know. Seems odd a heat exchanger would engine specific. Summit list a lot of them, but they're demensionally specific. Tape measure handy? __________________ At my worst I'm at my best

03-10-2015, 12:41 AM	#3
Nicks67C10 Registered User Join Date: Aug 2014 Location: Asheville NC Posts: 9	Re: Ls swap Radiator Thats why i am posting this been learning as i go and i wasn't sure if there is anything specific to worry about, or if can just run it with the old rad.

03-10-2015, 12:49 AM	#4
Hollow65 Registered User Join Date: Feb 2015 Location: San Diego, CA Posts: 409	Re: Ls swap Radiator Maybe the hose diameter? Other than that I don't know. A Radiator is a radiator. I'm thinking there isnt a specific radiator. Lots of Ls swaps in to drag cars and sand rails. I'm just an idiot though, there was no info on the Ls section? __________________ At my worst I'm at my best

03-10-2015, 12:53 AM	#5
Hollow65 Registered User Join Date: Feb 2015 Location: San Diego, CA Posts: 409	Re: Ls swap Radiator From quick search I think it's just the hose diameter on inlet and outlet. Also something about steam holes? Check the Ls swap Faq page. Good luck, sounds fun. Maybe Silverado hoses? __________________ At my worst I'm at my best Last edited by Hollow65; 03-10-2015 at 12:59 AM.

03-10-2015, 06:50 AM	#6
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Ls swap Radiator Many options on an LS swap radiator. Couple of vendors here carry or make them. LS engines have both the hoses located on the passenger side and the swap radiators tend to be double pass. The steam port provision is also made into many of them. Here is a link to Speedway showing one for your truck and many others to get some ideas on haw they are built. http://www.speedwaymotors.com/Shop/A...iators/20.html Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

03-10-2015, 09:47 PM	#7
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: Ls swap Radiator Im going to move this to the Ls swap section. You will likely get some helpful responses in there. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

03-10-2015, 09:52 PM	#8
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: Ls swap Radiator I'm running the stock 4 core.... with my LY6. __________________ 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

03-10-2015, 11:47 PM	#9
Nicks67C10 Registered User Join Date: Aug 2014 Location: Asheville NC Posts: 9	Re: Ls swap Radiator Thanks for the help guys. has anyone released a full kit or does anyone know what hoses would work for the coolant and steam lines?

03-11-2015, 01:35 AM	#10
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Ls swap Radiator I have a be-cool radiator that was from an SBC. The top hose outlets in the wrong place for the LS motor (right side, pump outlet is on left), but it can be easily addressed with a very long top radiator hose, OR more elegantly, a hard-piped section of tubing. Mine is stainless, and I've seen a few other members take a similar approach with stainless, aluminum, and I believe even a copper pipe. I have the hose part #'s and more pictures of the process in my build (link in my sig) if your interested. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-12-2015, 08:14 AM	#11
splatrd Registered User Join Date: Aug 2007 Location: Midlothian VA Posts: 37	Re: Ls swap Radiator I don't believe all LS motors have hose inlets on the right side. I have a 2003 Silverado with 5.3 that has top hose port on top left and lower hose on lower right just like most other GM products. It has a long top hose that crosses over the top of the radiator. I am in the process of swapping a '03 6.0 vortec into my '72 C10 and am planning on using all stock components from the Silverado for simplicity, and will likely upgrade to the electric fan set up from '05 up Silverado. __________________ 1972 Cheyenne C10 LWB 1970 C10 292 I6 3 speed 2017 Silverado LS 4x4 1978 El Camino SS, LT1 swap 2016 Camaro SS

03-12-2015, 11:36 AM	#13
Matt Cramer Registered User Join Date: Apr 2012 Location: Covington, GA Posts: 386	Re: Ls swap Radiator I am using my stock '72 radiator with radiator hoses intended for a 2005 Silverado. I had to cut about an inch off both ends of the lower hose to make it fit, but other than that, they work great. __________________ Matt Cramer 1972 Chevy C10 - 4.8 swap, long bed, and maybe one dent free body panel somewhere - SOLD 4.8 LS build thread

03-17-2015, 08:54 AM	#14
SparkyRnD Registered User Join Date: Dec 2011 Location: acworth georgia Posts: 890	Re: Ls swap Radiator We make bolt in units for your truck that are hand-made and TIG welded here in the USA, using US-Sourced materials. We never use any glue, epoxy or plastic in our radiators. Also, we are a site sponsor and offer a discount for forum members. Here is a link to the early C10 page on our website: http://www.rndfabrication.com/C10middle.html Contact me if you have any questions. __________________ www.RnDFabrication.com Custom Radiators, Valve Covers and Overflow Tanks



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