Engine Identification

Fig 1: Locating Engine Identification Markings

Courtesy of GENERAL MOTORS CORP.

The Vehicle Identification Number (VIN) Derivative (2) is located on the lower right side of the engine block and is a nine digit number stamped or laser etched onto the engine at the vehicle assembly plant. If reading the identification number from the left, the following information can be obtained:

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

Engine displacement (1) is cast into the engine block under the starter motor.