Engine ID and VIN Derivative Location L36 V-6 I.D. Location

The eighth character in the Vehicle Identification Number (VIN) identifies the engine. Adhesive-backed labels attached to the engine, laser etching or stampings on the engine block indicate the engine unit number/date code. All engines are stamped with a VIN derivative. For added information on VIN derivative, refer to VIN Derivative

The primary location of the VIN derivative for the 3800 engine is above the starter motor on the engine block (1).

The secondary location of the VIN derivative for the 3800 engine is below the water pump on the engine block (1).

Engine ID and VIN Derivative Location LS1 V-8 I.D. Location

(1)	Engine ID Number, Primary Location
(2)	Engine ID Number, Secondary Location

The eighth digit of the vehicle identification number (VIN) is the engine code letter, which identifies the engine as a 5.7L V8 (VIN eighth digit: G) (RPO code LS1).

Stick-on labels attached to the engine, laser etching, or stampings in the engine block indicate the engine unit number/build date code.

The engine ID number will be located in either the primary or the secondary location, as shown.

Engine VIN Derivative Locations