See Figures 1 and 2
The engine code information label is located on the valve cover. The label contains information on engine calibration, build date, plant code and engine code.
Another important label is the emission calibration label, located on the on either the driver's or passenger's door or door jamb. This label identifies the engine calibration, engine code and revision numbers. These numbers are used to determine if parts are unique to specific engines.
It is imperative that the engine codes and calibration number be used when ordering parts or making inquiries about the engine.