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Old 04-07-2006, 01:46 AM
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Coolant drain question

On a chivy 350 in a 73 nova with a radiators with no petcock, What is the easiest/least messy way to drain the necessary coolant for a intake manifold swap?

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Old 04-07-2006, 02:00 AM
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id pull the lower rad hose off the rad and just have a nice size catch pan underneith it. but no matter what there will still be some coolant in the thermostat housing, just put some towels around it when you pull it off.
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Old 04-07-2006, 03:09 AM
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Drain the block by removing the plug on th eside. THEN remove the bottom radiator hose.
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Old 04-07-2006, 03:19 AM
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I pull off the top radiator hose and bend it so that the coolant left in it drains. Then I pull the heater hose that runs to the intake manifold and let the manifold drain. It might take a second to see what path the coolant takes but you'll be able to catch it. You might still have a bit left, but if you control the intake manifold removal you'll be okay. I have pets so I always use Pet Safe antifreeze just to be on the safe side.
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