I am ordering a new engine harness for my car and don't know for sure what year my motor is. It's all together in the car, so I don't have it apart to look at the internals. I am somewhat sure it's an 88', but not posotive. Is there an engine ID tag anywhere on the motor? I have heard that there is some difference in ribs, but don't know anything about it. I have seen some motors with a vacuum sensor on the thermostat housing, and mine doesn't have that. Any help would be appreciated.