Generation V Internal Engine 2013-20xx LT1

Radiator plumbing for expansion tank

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Old Jun 10, 2024 | 08:08 AM
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Default Radiator plumbing for expansion tank

Good morning everyone,

I have a LS1 swapped car and my radiator sits lower than my engine (as does the filler neck).

I need to install an expansion tank and I’m not quite shore how I should plumb all the lines to the tank.

ive tried to do some research but most of the applications I’ve seen people draw up have heater cores involved and I don’t have a heater/AC

This are my available ports below

hot side radiator
cold side radiator
port on filler neck
Crossover tubes on heads


From what I have gathered from reading all of those should go to the expansion tank and the cold side of the radiator should go to the bottom of the expansion tank.. is this correct?
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