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
3100 VIN M Engine
The primary location (1) of the VIN derivative and the secondary location (2) of the derivative for the 3100 engine is above the starter motor on the engine block.
The primary location (1) and the secondary location (2) for the Engine ID for the 3100 L82 engine are as shown.
3.8L VIN Engine Location, L36/L67
The primary location of the VIN derivative for the 3800 L36 and L67 engine is above the starter motor on the engine block (1).
The secondary location of the VIN derivative for the 3800 L36 and L67 engine is below the water pump on the engine block (1).
The primary location (1) of the Engine ID for the 3800 L36 and L67 engine is under exhaust manifold close to where the bellhousing bolts to the block.
