I 6 CYLINDER ENGINE I I 0 386 COVER Engine Valve Rocker Arm I 82 S1 2 8B 14089012 RH 29 50 COVER VLV RKR PGO 61 22 82 85 ST1 2 8B 14064205 LH 31 75 COVER VLV RKR PGO 61 22 83 85 ST1 2 8B 14072052 RH 29 25 COVER VLV RKR PGO 61 22 86 90 ST1 2 8R 14089275 LH 32 25 COVER VLV RKR PGO 73 13 V 86 90 ST1 2 8R 14089276 RH 32 25 COVER VLV RKR PGO 73 13 88 90 ST1 4 32 10046193 RH 25 00 COVER VLV RVR PGO 89 29 88 90 ST1 4 32 14091554 LH 25 00 COVER VLV RKR PGO 81 33 0 413 BOLT REINFORCEMENT STUD Engine Valve Rocker Arm Cover 88 90 ST1 4 32 10066008 6 48 BOLT VLV RKR CVR BOLT HEX W WA 62OD 1 4 20X3 4 00 446 PGO 81 32 86 90 ST1 2 8R 14090538 12 60 REINFORCEMENT VLV RKR CVR PGO 73 I 16 82 S1 2 8 14066307 1 46 STUD VLV RKR CVR 29 7MM 01 428 PGO 61 16 82 S1 2 8B 14077864 4 49 STUD VLV RKR CVR 2 251 02 251 A PGO 61 16 83 85 ST1 2 8 14066307 1 46 STUD VLV RKR CVR 29 7MM 01 428 PGO 61 16 V 83 85 ST1 2 8B 14077864 3 49 STUD VLV RKR CVR 2 251 02 251 T PGO 61 16 86 90 ST1 2 8R 1409 1881 3 1 35 STUD VLV RKR CVR M6X1X9 M6X1X10 5 IPGO 73 19 86 90 ST1 2 8R 14092906 9 A 54 STUD VLV RKR CVR I M6X1X13 M6X1X21 5 PGO 73 20 V 0 423 GASKET Engine Valve Rocker Arm Cover I 82 85 ST1 2 8B 14089252 2 N L GASKET RKR CVR 86 90 ST1 2 8R 14089253 2 N L GASKET VLV RKR ARM CVR PGO 73 18 88 90 ST1 4 32 14081257 2 N L GASKET VLV RKR ARM CVR PGO 81 34 A 0 426 ROD Engine Valve Push 82 90 ST1 2 8B R 476525 12 6 35 ROD PUSH PGO 61 44 88 90 ST1 4 3Z 10046173 12 4 65 ROD PUSH PGO 81 51 0 429 BALL NUT STUD Engine Valve Adjusting 88 90 ST1 4 32 Q 3744340 12 98 BALL VLV RKR ARM 13 16 DIA PGO 81 I 61 I 82 90 ST1 2 8B R 477212 12 83 NUT VLV RKR ARM PGO 8 69 88 90 ST1 4 32 3744341 12 N L NUT VLV RKR ARM ADJ 3 8 24 PGO 81 62 i 82 90 ST1 2 8B R 476530 12 1 30 STU D VLV RKR ARM BALL PGO 8 66 88 90 ST1 4 32 3814692 12 1 85 STUD VLV RKR ARM 003 O S 88 90 ST1 4 32 3815892 AR 1 35 STUD VLV RKR ARM 013 O S 0 439 GUIDE Engine Valve Push Rod 82 90 ST1 2 8B R 476531 6 1 60 GUIDE PUSI I ROD PGO 8 72 0 459 L FTER RETAI NER Engine Valve 82 S1 2 8 5234390 12 19 10 LIFTER HYD VLV 010 O S PGO 73 43 82 90 ST1 2 8B R 5234212 12 N L LIFTER VLV STD PGO 61 43 83 85 ST1 2 8B 5234390 12 19 10 LIFTER HYD VLV 010 O S PGO 73 43 86 90 ST1 2 8R A 5234390 12 19 10 LIFTER HYD VLV 010 0 S PGO 73 43 88 90 ST1 4 32 5234890 12 N L LIFTER HYDRAULIC PGO 89 59 88 90 ST1 4 32 10046165 1 3 10 RETAINER VLV LIFTER RESTRICTOR V PGO 81 68 0 480 GUIDE Engine Valve Lifter 88 90 ST1 4 32 14093634 6 1 50 GUIDE VLV LIFTER PGO 81 50 0 51 9 CAMSHAFT Engine 82 85 ST1 2 8B 14024278 1 145 00 CAMSHAFT PGO 65 7 86 90 ST1 2 8R 10118636 1 156 00 CAMSHAFT USED W ELEC FUEL PUMP I PGO 70 85 88 90 ST1 4 32 10088148 1 153 00 CAMSHAFT PGO 78 73 V 0 529 BOLT RETAINER Engine Camshaft 88 90 ST1 4 32 14093637 2 27 BOLT CM SHF RET SOC TORX DR 1 4 20 5 47 OD PGO 78 80 88 90 ST1 4 32 10088128 1 3 80 RETAINER CM SHF PGO 78 106 0 539 BEARING Engine Camshaft 82 90 ST1 2 8B R 14002534 2 15 95 BEARING CVM SHF 2 3 PGO 65 8 82 90 ST1 2 8B R 14002535 1 15 95 BEARING CM SHF 4 PGO 65 8 i 1990 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52S 1 0 386 0 539 0 26 REV 1 0 90