I 1L01 0191 RPO DEFINITIONS V 4 V LH0 ENGINE 3 1L 3 1T V6 V 204 MODEL CONVERSION GTZ BERETTA 1LV37 j ZO4 1LZ37 I j 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17L V I 1 000 GROUP 1 26 1 92