Did Bars leaks plug up a cracked Castech cylinder head

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Doubeleive

Wes
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I used the bluedevil permanent stuff a couple months ago so far it's worked hasn't lost a drop of coolant, engine tick went away from the coolant getting in the motor, runs and sounds perfect again.
 

Byoung1330

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I also have a 04 Tahoe. It has 862 heads but I started having loss of coolant. Couldn't find a leak. But I used the ac delco tablets the guy above me posted an havent had to add a drop since. I was adding coolant everyday
 

Tonyrodz

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I also have a 04 Tahoe. It has 862 heads but I started having loss of coolant. Couldn't find a leak. But I used the ac delco tablets the guy above me posted an havent had to add a drop since. I was adding coolant everyday
I think the 862 heads are right up there with castech heads. 2 different vehicles with the 862's--exact same problem.
 

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