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supply/return on water pump holes???

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Old Nov 24, 2008 | 09:55 AM
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Default supply/return on water pump holes???

Hey guys,

I am planning on going to a remote mount water pump, but was probably not going to run a meizere. Unfortunately, only meizere makes a 4-port water pump.


My question is does someone know what the four ports on on the block do? In specific, which ones are supply and which are return?

Thanks!
Tim
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Old Nov 24, 2008 | 11:19 AM
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Bottoms are the inlet, tops are the out. The LS Engines cool like the Gen I's, Block, then the Heads.
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Old Nov 24, 2008 | 12:22 PM
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Perfect.

So would it be bad in any way to y the supplies together and returns together to run a 1 in one out water pump?

Last edited by tim99ws6; Nov 24, 2008 at 08:04 PM.
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Old Nov 24, 2008 | 01:21 PM
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Yea, that would be bad..
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Old Nov 24, 2008 | 08:04 PM
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why would that be bad?
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Old Nov 24, 2008 | 10:11 PM
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Cause you would be sending coolant to only one side, and there is really no way for it to cross over. It goes in the Block first, then the Heads on each side, that's just how the Water Jacket is made.
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