6 CYLINDER ENGINE 0 439 COVER GUIDE Engine Valve Push Rod 76 ALL 250 4 465809 2 4 45 COVER PUSH ROD 4 80 81 X 2 8 476531 12 1 40 GUIDE PUSH ROD 0 443 GASKET Engine Valve Push Rod Cover 76 ALL 250 3920938 2 3 25 GASKET PUSH ROD CVR 0 446 BOLT STUD Engine Push Rod Cover 76 ALL 250 3814350 4 67 BOLT W SEAL PUSH ROD CVR 5 16 18 X 7 18 76 ALL 250 352169 2 85 STUD W SEAL PUSH ROD CVR 0 459 LIFTER Engine Valve 76 81 ALL 231 5232765 12 9 00 LIFTER STD 76 81 ALL 231 5233005 I2 7 00 LIFTER 010 O S 76 ALL 250 5232720 12 N L LIFTER 80 A 229 5232720 I2 N L LIFTER 80 X 2 8 5233545 I2 22 00 LIFTER 0IO O S ENG THAT REO THIS LIFTER WILL HAVE I0 STAMPED ON LIFTER BOSS 80 81 X 2 8 5234212 I2 N L LIFTER STD 0 519 CAMSHAFT Engine NOTE 7 14 bolt oil pan edge of camshaft has cast dimples NOTE 2 74 bolt oil pan edge of camshaft does not have cast dimples or all 2O bolt oil pan 76 77 ALL 231 1249464 I 106 00 CAMSHAFT W NON INTEGRAL DISTR DRIVE GEAR 76 ALL 250 6262809 1 115 00 CAMSHAFT 77 ALL 231 1254202 1 124 00 CAMSHAFT W INTEGRAL DISTR DRIVE GEAR 77 78 ALL 23 1A 2 1255666 I 124 00 CAMSHAFT 79 A 231 2 1ST DES 1262835 I 124 00 CAMSHAFT NOTE 1 79 A 231 2 2ND DES 25510049 I 124 00 CAMSHAFT NOTE 2 79 80 A B H 231A IST DES 1262835 I 124 00 CAMSHAFT NOTE I 79 80 A B H 231A 2ND DES 25510049 I 124 00 CAMSHAFT NOTE 2 79 F G X 231A 1262835 I 124 00 CAMSHAFT 79 G 231 2 1262835 I 124 00 CAMSHAFT 80 A 229 14060649 I 123 00 CAMSHAFT 80 81 F 231A 1262835 I 124 00 CAMSHAFT 80 G 231A IST DES 1262835 I 124 00 CAMSHAFT NOTE 1 80 G 231A 2ND DES 25510049 I 124 00 CAMSHAFT NOTE 2 80 81 X 2 8 14024278 I 118 00 CAMSHAFT 81 A B 231A IST DES 1262835 1 124 00 CAMSHAFT NOTE 1 81 A B 231A 2ND DES 25510049 I 124 00 CAMSHAFT NOTE 2 0 533 BEARING BUTTON SPRING Engine Camshaft Thrust 76 ALL 250 10000568 I 4 30 BEARING 76 81 ALL 231 1250948 I 2 30 BUTTON 76 77 ALL 231 1250126 I 1 10 SPRING BUTTON W NON INTEGRAL DISTR DRIVE GEAR 77 81 ALL 231 1254199 I 1 10 SPRING BUTTON W INTEGRAL DISTR DRIVE GEAR 0 539 BEARING Engine Camshaft NOTE 7 W 74 bolt oil pan NOTE 2 W 2O bolt oil pan 76 78 ALL 231 1231142 3 8 25 BEARING CM SHF 2 3 RR 76 78 ALL 231 1234441 I 7 40 BEARING CM SHF 1 76 ALL 250 14002525 4 5 65 BEARING CM SHF 1 2 3 RR 79 A 231 2 1ST DES 1231142 I 8 25 BEARING CIVI SHF 4 NOTE 1 79 A 231 2 IST DES 1234441 I 7 40 BEARING CIVI SHF 1 NOTE I 79 A 231 2 2ND DES 25524301 2 7 55 BEARING CM SHF 1 4 NOTE 2 79 80 A B H 23 IA IST DES 1231142 I 8 25 BEARING CM SHF 4 NOTE 1 79 80 A B H 231A IST DES 1234441 1 7 40 BEARING CIVI SHF 1 NOTE 1 79 80 A B H 231A 2ND DES 25524301 2 7 55 BEARING CI I SHF 1 4 NOTE 2 79 F G X 231 2 1231142 I 8 25 BEARING CIVI SHF 4 79 F G X 231 2 1234441 I 7 40 BEARING CM SHF 1 79 G 231 2 1231142 I 8 25 BEARING CIVI SHF 4 79 G 231 2 1234441 I 7 40 BEARING CI I SHF 1 80 A 229 474005 1 17 80 BEARING CIVI SHF 1 80 A 229 474006 2 12 50 BEARING CIVI SHF 2 RR 80 A 229 474007 I 17 80 BEARING CM SHF 3 80 81 F 23 IA 1231142 I 8 25 BEARING CI I SHF 4 80 81 F 23 IA 1234441 1 7 40 BEARING Cl I SHF 1 80 G 23 IA IST DES 1231142 I 8 25 BEARING CM SHF 4 NOTE I 80 G 231A IST DES 1234441 I 7 40 BEARING CI I SHF 1 NOTE 1 1987 GENERAL MOTORS SERVICE PARTS 0PEFIATIONS PONTIAC 2I 0 439 0 539 0 22 REV 7 87