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Engine Identification

NOTE: For repair procedures not covered in this article, see ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article in GENERAL INFORMATION.

Engine can be identified by eighth character of Vehicle Identification Number (VIN) which is stamped on a metal pad, located near lower left corner of windshield. See ENGINE IDENTIFICATION CODES table. "T" or "V" in tenth characters of the VIN indicates 1996 or 1997 model year.

Engine can also be identified by a 3-character engine code (RPO code). See ENGINE IDENTIFICATION CODES  table. This code may be stamped on engine. See Fig 1.

ENGINE IDENTIFICATION CODES

Engine Code
3.8L SFI
8th Character Of Dash VIN K
Engine Code (RPO Code) L36
3.8L SFI Supercharged
8th Character Of Dash VIN 1
Engine Code (RPO Code) L67
Fig 1: Locating Engine Codes
G91E08084Courtesy of GENERAL MOTORS CORP.