Engine ID and VIN Derivative Location L36 Engine V6

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 Engine V8

(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.

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

The engine ID number will be located on the rear of LH cylinder head or the front part of the LH oil pan rail (1).

Engine VIN Derivative Locations