coolant plug at the rear of the head? - LS1TECH



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coolant plug at the rear of the head?

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Old 03-16-2017, 07:58 PM   #1
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Default coolant plug at the rear of the head?

This may seem like a dumb question but, I have a set of 706 heads on my build that I just fired up today. As I was pouting in coolant is was leaking by the rear of the drivers head. As I felt around the rear of the head I could feel the coolant coming from a hole at the rear of the head (facing the firewall). Is there supposed to be some sort of plug back there?
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Old 03-16-2017, 08:32 PM   #2
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There's a freeze plug on either end of the head.
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Old 03-16-2017, 09:31 PM   #3
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Freeze plug is bone dry. Something back there is leaking as I'm putting coolant in. Like a stream. I would imagine the head gasket couldn't do this?
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Old 03-16-2017, 10:03 PM   #4
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Only other thing I can think of would be the steam vent. I wouldn't think that a bad head gasket would let unpressurized coolant run out like that. Unless someone really messed up the install.
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Old 03-16-2017, 11:12 PM   #5
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Get a small mirror and high powered flashlight and shine it back there and angle the mirror. You should be able to see where the leak is pretty easily.
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Old 03-17-2017, 05:50 PM   #6
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Steam tube on that side was hand tight. Lol
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