Extensive damage caused by a blown head gasket can be the most detrimental form of engine problems. If a faulty head gasket is not detected early, a required repair of the engine block, the cylinder head, or a complete engine replacement could be required. read more
If the engine is run while the gasket is blown, the engine will overheat and eventually blow or seize up. If the gasket blew and engine was soon after turned off, there may be no further damage to the engine. read more