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Old 09-03-2009, 10:45 AM
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Steve Barcak Steve Barcak is offline
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Join Date: Nov 2002
Location: Pontiac Heaven in the Arizona desert & above the White mountains in the cool country of eastern Az
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Quote:
Originally Posted by andyg View Post
I was driving on the expressway today doing about 70-75 when the head gasket suddenly blew on my engine. I pulled over and the oil was about 5 inches too full on the dipstick and the radiator had nothing in it.

I'm wondering what damages I should be looking for. I plan on pulling the heads first then deciding on pulling the whole block or not. I feel that I may need to pull the whole thing as it dumped all the coolant in, lost oil pressure and then locked up from 3500 rpm's in less than half a second.

What do you experts think?
Head gaskets don't 'suddenly blow'. Something caused it. From reading this , it seems you are telling the whole story.

how many miles since the heads have been off? were they retorqued?
Was the motor running hot?
Was it detonating?

First, I'd pull the plugs and then see if you can rotate the motor with a breaker bar on the crank bolt. It'll probably turn over. Do that first.
Then, depending on what happens above.
I'd pull the heads first and leave the short in the chassis. Drain the oil and look at it.
It is also hard to believe all that happend in under a half of a second.

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