6 CYLINDER ENGINE 0 426 ROD Engine Valve Push 76 79 ALL 250 4 4 3788495 12 2 05 ROD 78 81 ALL 198 231 4 1249139 12 2 75 ROD 4 78 79 ALL 200 4 4 3796243 12 N L ROD 4 80 B1 ALL 229 4 4 4 3796243 12 N L ROD 44 4 80 81 X 2 8 4 44 476525 12 3 60 ROD 4 4 4 0 429 BALL NUT STUD Engine Valve Adjusting 76 79 ALL 250 3992294 12 51 BALL 4 4 78 79 ALL 200 3959142 AR 59 BALL VLV RKR ARM 4 4 80 81 ALL 229 4 3959142 12 59 BALL VLV RKR ARM 76 79 ALL 200 4 3744341 12 40 NUT VLV RKR ARM 44 76 79 ALL 250 4 465934 AR 38 NUT 4 4 80 81 ALL 229 4 4 3744341 I2 40 NUT VLV RKR ARM 4 80 81 X 2 8 4 4772I2 12 52 NUT VLV RKFI ARM 4 44 76 79 ALL 4 3814692 AR 86 STUD VLV RKR ARM 003 0 4 4 76 80 ALL 44 4 3815892 AR 86 STUD VLV RKR ARM 013 0 5 4 80 ALL 229 3814692 12 86 STUD VLV RKR ARM 003 0 S 4 80 81 X 2 8 476530 12 83 STUD VLV RKR ARM BALL 4 0 439 COVER GUIDE Engine Valve Push Rod 76 77 ALL 250 4 3788496 2 2 65 COVER 4 78 79 ALL 250 4 4 465809 2 2 85 COVER PUSH ROD 80 81 X 2 8 4 478531 12 96 GUIDE PUSH ROD 0 443 GASKET Engine Valve Push Rod Cover 78 77 ALL 250 4 3920938 2 2 15 GASKET 4 0 446 BOLT STUD Engine Push Rod O ver 76 79 ALL 250 4 3814350 4 43 BOLT W SEAL PUSH ROD CVR 76 79 ALL 250 4 4 352169 2 54 STUD W SEAL 0 459 BALL LIFTER Engine Valve 79 ALL 200 4 453569 I2 39 BALL HYD VLV LIFTER CHK 4 256 76 ALL 4 5232720 AR N L LIFTER 44 4 77 79 ALL 200 250 5232720 12 N L LIFTER 44 78 81 ALL 196 23I 5232765 AR N L LIFTER STD 78 81 ALL I96 231 4 5233005 AR 4 65 LIFTER 010 0 S 80 81 ALL 229 4 5232720 12 N L LIFTER 80 81 X 2 8 5232720 12 N L LIFTER 80 X 2 8 5233545 12 13 50 LIFTER 250 O S4 ENGINES THAT REQUIRE TI IIS OVERSIZE LIFTER WILL HAVE 10 STAMPED ON LIFTER BOSS 0 519 CAMSHAFT Engine NOTE 1 Us in engine whntake manifold and cylinder head east as separate units NOTE 2 Usa in engine w intake manifold cast as an integral par of cylinder head 76 ALL 250 4 3864497 1 72 75 CAMSHAFT NOTE I 4 76 ALL 250 4 6262809 1 72 75 CAMSHAFT NOTE 2 77 79 ALL 250 4 6262809 I 72 75 CAMSHAFT 4 4 78 ALL 196 EXC PB ENG 1255854 1 92 25 CAMSHAFT 78 79 ALL 200 461373 1 78 00 CAMSHAFT 4 78 ALL 231A 2 1255666 1 78 75 CAMSHAFT 44 44 79 ALL 196 1264395 1 78 00 CAMSHAFT 44 79 ALL 231A 2 1262835 1 78 75 CAMSIIAFT 44 80 B1 ALL 229 4 14014447 I 78 00 CAMSHAFT 4 80 81 ALL 231 3 4 4 1264395 I 78 00 CAMSHAFT 4 80 81 ALL 231A 4 4 1262835 1 78 75 CAMSHAFT 4 80 X 2 8 4 476523 1 75 25 CAMSHAFT 81 X 248X 14024278 1 75 00 CAMSHAFT 81 X 2 82 4 14031378 1 81 00 CAMSHAFT 0 533 BEARING BUTTON SPRING Engine Camshaft Thrust 76 ALL 250 4 3790531 1 2 85 BEARING 4 4 77 78 ALL 250 4 4 10000568 1 2 85 BEARING 4 4 78 81 ALL 196 231 4 1250948 1 2 00 BUTTON CM SHP THRUST 78 81 ALL 195 231 4 1254199 1 471 SPRING THRUST BUTTON 0 539 BEARING Engine Camshaft Front 76 77 ALL 250 4 3750884 1 3 85 BEARING 0 548 78 79 ALL 196 231 1234441 1 5 05 BEARING CM SHF FRT 78 79 ALL 200 4 474005 1 11 80 BEARING CM SHF 1 4 80 81 ALL 229 4 474005 1 11 80 BEARING CM SHF 1 B0 81 ALL 231 4 4 1234441 1 5 05 BEARING CM SHF FRT 4 80 8I X 2 8 4 14002533 1 9 90 BEARING CM SHF 1 4 80 81 X 2 8 4 14002534 2 9 90 BEARING CM SHF 2 3 i GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 1O 0 126 0 539 0 ze 9 80