I I I I VS I I I CORVETTE ENGINE SERIES I NUMBER AND SUFFIX CHART Cont I I I I ISGE I I I I I I I 427 B CYLINDER I I I I I I Tv I I I Tvne I I I I Description Designation Desciiption Designation I I High Performance I I IL S ecIal High Performance Tri Carb IR I I High Performance and Tri Carb IM Heaiy Duty I I I I IT I High Performance Tri Caro and 3Speed Sperial High Performance Tri Carl I I I I I Automatic Trans I IO rnd Aluminum Heads I IU I I I I 3 or ed Automatic Trans I I IO I I I I I 1969 I I I I II I I I 350 B CYLINDER II I I I I I High Performance I N Manual Trans I HY I I I High Performance C A C I I IIIX 3SneedIAutomatic Trans T H 400 I HZ I I I 427 B CYLINDER I I I I High Performance 3 eed I I Tri Carb Special High Performance I I I I I I Automatic Trans T I 400 t IL LL Heavy Duty Clutch I LT I High Performance I L LM I Aluminum Heads Heavy Duty Clutch I LU I I II I I I TriCarb High Performance 3 Speed Heavy Duty 3 5peed Automatic I Automatirz Trans T H 400 LN I I Trans T H 400 LV I Heavy Duty LO Aluminum Heads 3 Speed Automatic I I Aluminum Heads I LP I Trans T H 400 I LW I I Tri Carb High Performance I LO Tri Carb Special High Performance I I I I I Tri Carb Spec aI High Performance t LR J Speed Automatic Trans T H 400 LX I I I I I I I ism I I I I I I I II I I I 350 B CYLINDER I I I IManuaI Trans I CTLI High Performance Transistor Ignition C A C CTO I I I 3 Speed Automatic T H 400 CTM I Special High Performance CTR I High Performance I CTN Special High Performance Transistor Ignition CTU I High Performance C A C I I CTO Special Piuh Performance Transistorlgniticn I High Ferformauce Transistor Ignition CTP I 4 peed CTV I I I I I 454 8 CYLINDER I I I I High Performance 4 BBL Z I Speed I 4 BBL Heavy Duty 3 Speed Automatic I I I AutomaticT l I 400 CGW I T H 400 CZN II I I I I High Performance 4 BBL CZU High Performanze 4 BBL Transistor II 4 BBL Heavy Duty I CZL I I lngition I I I CRI I I WAREHDU5lNG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPCRATION CFEVHOLET l4A I I REV 12 83 I ta I I I I A I 4 I I I I I