not sure about the water jackets or coolant, but the gasket that bolts to the itake manifold is a little goofy, i just noticed that the other night. mine has the proper bolt holes and seal area but seems too big, a large tab sticks up. but i do have the 2.2 and you have the 1.8 so that could be different. if you havent, you should get a shop manual like haynes or chilton. i paid $25 for mine and the time and money ive saved is probably 10 times that.