Engines may be identified by the 8th character of Vehicle Identification Number (VIN). The VIN is located at the left front corner of instrument panel and is visible through windshield.
| Application | Code |
|---|
| 2.8L (173") MFI (1) | S, W or 9 |
| 3.0L (181") MFI (1) | L |
| 3.8L (231") 2-Bbl. | A |
| 3.8L (231") SFI (2) | 3 |
| 3.8L (231") SFI Turbo (2) | 7 |
| 4.3L (262") TBI (3) | Z |
| (1) Multi-Port Fuel Injection. (2) Sequential Port Fuel Injection. (3) Throttle Body Fuel Injection. |
| (1) | Multi-Port Fuel Injection. |
| (2) | Sequential Port Fuel Injection. |
| (3) | Throttle Body Fuel Injection. |
