Engine Identification

Fig 1: Primary Engine Identification Location

Courtesy of GENERAL MOTORS CORP.

The primary Vehicle Identification Number - VIN derivative for the 3800 - L36 and 3800 - L67 is stamped or laser etched on the left side of the engine block above the starter motor (1).

Fig 2: Secondary Engine Identification Location

Courtesy of GENERAL MOTORS CORP.

The secondary Vehicle Identification Number - VIN, derivative for the 3800 - L36 and 3800 - L67 is stamped or laser etched below the water pump on the engine block (1). The Vehicle Identification Number - derivative is nine digits long and can be used to determine if a vehicle contains the original engine.

• The first digit identifies the division.
• The second digit identifies the model year.
• The third digit identifies the assembly plant.
• The fourth through ninth digit are the last six of the Vehicle Identification Number - VIN.