LS swap question... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68blackbird · 09-29-2018, 08:08 PM

Really like to see what you guys who have done LS swap did for radiator hoses, Kel

dsraven · 09-29-2018, 08:24 PM

here is a little light reading on the LS cooling system for you to peruse through. the thermostat controls the coolant returning to the block, not leaving the engine like a lot of us are used to. it is a good idea to ensure you have some flow through the heater hoses so the thermostat reads the engine temp better. some have had issues with engine overheating or at least getting really hot and they have found this to be the issue. there are also steam lines to get rid of the steam generated in the cyl head area.
anyway, you probably already know that. this is still some good info though. lots of other stuff on this site as well, including a pretty good write up on the LS engine lineage.

https://www.pirate4x4.com/tech/billa...CoolingSystems

68blackbird · 09-30-2018, 12:25 AM

Quote:

Originally Posted by dsraven

here is a little light reading on the LS cooling system for you to peruse through. the thermostat controls the coolant returning to the block, not leaving the engine like a lot of us are used to. it is a good idea to ensure you have some flow through the heater hoses so the thermostat reads the engine temp better. some have had issues with engine overheating or at least getting really hot and they have found this to be the issue. there are also steam lines to get rid of the steam generated in the cyl head area.
anyway, you probably already know that. this is still some good info though. lots of other stuff on this site as well, including a pretty good write up on the LS engine lineage.

https://www.pirate4x4.com/tech/billa...CoolingSystems

Yes sir, saw that thanks...for the life of me, I don't know why I never saw this section before...

http://67-72chevytrucks.com/vboard/f...er=desc&page=2

...everything I need and more...lots of reading to do now, Kel

**mr48chev** · 09-30-2018, 02:53 PM

Dang we could have sent a few folks over there. I'm snooping into an LS with automatic swap into my OT daily when it's engine gives up the ghost if it ever does and didn't know about the cooling system thing.

09-29-2018, 08:08 PM	#1
68blackbird Registered User Join Date: Nov 2016 Location: South Texas Posts: 222	LS swap question... Really like to see what you guys who have done LS swap did for radiator hoses, Kel __________________ Kel's 1950 GMC 1/2 ton build

09-29-2018, 08:24 PM	#2
dsraven Registered User Join Date: Nov 2010 Location: calgary alberta Posts: 8,377	Re: LS swap question... here is a little light reading on the LS cooling system for you to peruse through. the thermostat controls the coolant returning to the block, not leaving the engine like a lot of us are used to. it is a good idea to ensure you have some flow through the heater hoses so the thermostat reads the engine temp better. some have had issues with engine overheating or at least getting really hot and they have found this to be the issue. there are also steam lines to get rid of the steam generated in the cyl head area. anyway, you probably already know that. this is still some good info though. lots of other stuff on this site as well, including a pretty good write up on the LS engine lineage. https://www.pirate4x4.com/tech/billa...CoolingSystems

09-30-2018, 02:53 PM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,735	Re: LS swap question... Dang we could have sent a few folks over there. I'm snooping into an LS with automatic swap into my OT daily when it's engine gives up the ghost if it ever does and didn't know about the cooling system thing. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.



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