I dont know, but the sob was tight, an air chiesel would not spin it out, I cut it off with a cut-off wheel, sacrificed the head.
It was tight, let the machine shop deal with the remains.
It still had the factory shim gaskets on the heads and intake, so most likely somebody had a bad day on the assembly line, he/she put it in the back farthest bolt on the passenger side, so it would be impossible to remove.
It still has the hardens hashes on it.
Fun, Fun
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