TSOVI 010 RPO DEFINITIONS LL2 ENG NE 2 8L 2 8R V6 l LN8 ENG NE 2 5L 2 5E L4 L35 ENGINE 4 3L 4 3W CENTRAL PORT INJECT ON V6 9O DEG L38 ENGINE 2 5L 2 5A 4 CYL A 279 TYPHOON PERFORMANCE PACKAGE 8U4 HEATER ENG NE BLOCK j 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 53S 1 1 92 T 1 17 A 1 000 GROUP