4 CYLINDER ENQQVE O 5 1 9 CAIVISHAFT Engine 84 86 A 2 5R 1ST DES 10029616 1 159 00 CAMSHAFT IDENT BY INT VLV WITH 3422 DIA STEM AND EXH VLV WITH 3419 DIA STEM PGO 6 98 84 86 A 2 5R 2ND DES 10029787 1 159 00 CAMSHAFT IDENT BY INT VLV WITH 3137 DIA STEM AND EXH VLV WITH 3132 DIA STEM ALSO XJS D STAMPED ON FRONT FACE OF BLOCK OR NEAR RR RH SIDE OF BLK PGO 6 98 88 89 A 2 5R 10181311 1 159 00 CAMSHAFT MCHG DENT BY GEAR DRIVE CANI 82 83 A 2 5R 5 10006745 1 159 00 CAMSHAFT PGO 6 98 87 A 2 5R 10029787 1 159 00 CAMSHAFT PGO 6 98 90 A 2 I5R 10044525 1 159 00 CAMSHAFT PGO 16 81 0 5133 BEARING BEARING KIT PLATE Engine Camshaft Sprocket 82 83 A 2 5 5 10181215 1 4 65 BEARING CM SHF THR ALSO USE 549631 RING PGO 6 96 82 90 A 2 5R 10181215 1 4 65 BEARING CM SHF THR ALSO USE 549631 RING PGO 6 96 82 83 A 2 5 5 12508079 1 4 65 BEARING KI T CM SI IF THR 82 90 A 2 5R 12508079 1 4 65 BEARING KIT CM SHF THR 90 A 2 5R 14018764 1 5 60 PLATE CM SHF THR 0 5339 BEARING Engine Camshaft I 82 83 A 2 5 5 14002525 3 15 10 BEARING CIM SHF PGO 6 99 82 90 A 2 5R 14002525 3 6 10 BEARING CIM SHF PGO 6 99 0 5153 PLLIG Engine Camshaft Bearing 82 83 A 2 5 5 10036984 1 67 PLUG CM SHF RR BRG HOLE 53 48MI I PGO 5 23 82 90 A 2 5R 10036984 1 67 PLUG CM SHF RR BRG HOLE 53 48MNI PGO 5 23 0 603 ROD Engine Piston 82 83 A 2 5 5 10042989 4 51 75 ROD CONN PGO 5 15 82 90 A 2 I5R 10042989 4 51 75 ROD CONN PGO 5 15 0 6 I6 BEARING KIT Engine Connecting Rod 82 83 A 2 5 5 12329989 4 14 30 BEARING KIT CONN ROD STD PGO 5 18 82 90 A 2 5R 12329989 4 14 30 BEARING KIT CONN ROD STD PGO 5 18 82 83 A 2 5 5 12329992 4 113 25 BEARING KIT CONN ROD 010 U S 82 90 A 2 5R 12329992 4 113 25 BEARING KIT CONN ROD O10 U S 85 87 A 2 15R 12329990 AR 13 75 BEARING KIT CONN ROD O01 U S 0 623 BOI T Engine Connecting Rod Cap 82 83 A 2 5 5 10000569 8 1 75 BOLT CONN ROD 11 32X24X2 0 PC PGO 5 16 82 90 A 2 I5R 10000569 8 1 75 BOLT CONN ROD 11 32X24X2 0 PC PGO 5 16 0 626 NUT Engine Connecting Rod Bolt 82 83 A 2 5 5 527599 8 76 NUT CONN ROD PGO 5 19 82 90 A 2 I5R 527599 8 76 NUT CONN ROD PGO 5 19 0 629 PISTON Engine 82 83 A 2 5R 5 10027416 4 67 00 PISTON W PIN STD PGO 5 14 82 83 A 2 5R 5 10027417 4 6 7 00 PISTON W PIN O 13MM 0 S 005 OS 82 83 A 2 5R 5 10027582 4 67 00 PISTON W P N O 25MM 0 S 010 O Si 82 83 A 2 5R 5 10027583 4 6 7 00 PISTON W IPIN 0 76MM O S 030 0 5 84 86 A 2 5R 10027317 4 713 00 PISTON W IPIN STD 101 594 101 584MM WEIGHT 650 GRAMS WITHOUT PISTON PIN 84 86 A 2 5R 10027318 4 78 00 PISTON W IPIN O 13MM O S WE GI I I 650 GRAMJS WITHOUT PISTON PIN 84 86 A 2 5R 10030169 4 67 00 PISTON W IPIN 0 25MM O S 101 864 101 840MM WE GHT 650 GRAMS WITHOUT PISTON PIN 84 86 A 2 5R 10030189 4 67 00 PISTON W P N O 76MM 0 5 102 374 102 35OMM WEIGHT 650 GRAMS WITHOUT PISTON PIN 1991 GENERAL MOTORS SERVICE PARTS CIPEIFIATIONS CHEVROLET 17A 2 5 91 0 13 0 519 0 629