GMO3 248 RPO DEFINITIONS L27 ENGINE 3 8L 3 8L V6 L67 ENGINE GAS 6 CYL 3 8L 3 8 I MF V6 SUPERCHARGED A E Zi I 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS BU CK 44C j j 8 92 3 43 3 000 GROUP