It sounds like the coolant is just going directly into the combustion chamber. As far as my thoughts, chances are it is just a head gasket. However, you may want to have the head checked for cracks. I'm not sure which V8 you have, the 318 or 360, but both have heads that seem to hold up forever.
Let me know if you have other questions.
Saturday, November 20th, 2010 AT 9:02 PM