I just bought a 2001 chevy cavalier for 2 thousand dollars found out I needed to replace the engine because the head gasket is blown and if I replace the head gasket for about 2k it would put pressure on the bottom of the engine and could crack the bottom of the engine. So I may need a whole new engine and the guy recommends it over the new head gasket. The car has a 154k miles on it. What is your take on this and what should I do?