LS overflow tank - The 1947 - Present Chevrolet & GMC Truck Message Board Network

upon1 · 01-16-2018, 10:27 PM

Doing an LS swap on 55, with a champion rad. Is an overflow tank necessary or just leave the fluid an inch or so from the top?

dsraven · 01-17-2018, 09:30 AM

this is a pretty good write up on how the LS cooling system works, which is different that the old style small block stuff you may be more familiar with. there is quite a knowledge base on that site for LS engines as well as other stuff. it is a 4x4 site but they also talk about related things like tube notching, building roll bars, suspension stuff etc. good info to know either way.
I always recommend an overflow tank. that's just me though.

http://www.pirate4x4.com/tech/billavista/Cooling/

01-16-2018, 10:27 PM	#1
upon1 Registered User Join Date: Oct 2007 Location: Saskatoon Posts: 138	LS overflow tank Doing an LS swap on 55, with a champion rad. Is an overflow tank necessary or just leave the fluid an inch or so from the top? __________________ "Lifes to short to drive an ugly truck." Project 55 To Life http://67-72chevytrucks.com/vboard/s...d.php?t=432994

01-17-2018, 09:30 AM	#2
dsraven Registered User Join Date: Nov 2010 Location: calgary alberta Posts: 8,333	Re: LS overflow tank this is a pretty good write up on how the LS cooling system works, which is different that the old style small block stuff you may be more familiar with. there is quite a knowledge base on that site for LS engines as well as other stuff. it is a 4x4 site but they also talk about related things like tube notching, building roll bars, suspension stuff etc. good info to know either way. I always recommend an overflow tank. that's just me though. http://www.pirate4x4.com/tech/billavista/Cooling/



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