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Reply to "Weiand water pumps, what's up? ACCOBRA"

Mark,

your engine needs to be able to recirculate coolant from behind/below the thermostat back to the suction of the water pump.

The idea is that when the motor is cold & the thermostat closed, coolant MUST still circulate through the block & cylinder heads.

This is true with any motor, not just a Cleveland or Windsor.

Your friend on the DTBB, George
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