140 ENGINE ASSEMBLY 0 309 CAP Valve Spring 71 75 All 140 3980281 8 43 CAP 0 310 KEY Valve Stem 71 75 All 140 3947770 16 31 KEY 0 386 COVER Camshaft 71 75 All 140 3994274 1 26 50 COVER 0 413 SCREW Valve Rocker Cover 71 75 All 140 6262890 10 27 SCREW machine w rubber washer 4 20 X 9 ia 0 459 LIFTER SCREW Valve or Tappet NOTE 1 Used selectively as required for a total of 8 per veh with 5232771 72 to obtain acceptable valve lash NOTE 2 Used selectively as required for a total of 8 per veh with 5232770 72 to obtain acceptable valve lash NOTE 3 Used selectively as required for a total of 8 per veh with 5232770 71 to obtain acceptable valve lash 71 75 All 140 5232770 8 6 09 valve adj screw tip color plain 430 451 375 397 Note 1 71 75 All 140 5232771 8 6 09 valve adj screw tip color blue 438 459 383 405 Note 2 71 75 All 140 5232772 8 6 09 LIFTER valve adj screw tip color copper 422 443 383 405 Note 3 71 75 All 140 5232760 8 90 SCREW valve tappet aassy adjusting plain color 71 75 All 140 5232763 8 1 40 SCREW valve tappet assy adjusting colored blue 71 75 All 140 5232764 8 1 40 SCREW valve tappet assy adjusting colored copper 0 519 CAMSHAFT Engine 71 72 All w 1BC 140 exc NB 2 73 75 All w 1BC 140 3973131 1 64 75 71 All w 2BC 140 3988714 1 73 75 72 All w 2BC NB 2 140 6262888 1 64 75 73 75 All w 2BC 140 6262888 1 64 75 CAMSHAFT 0 529 GASKET Camshaft Cover 71 75 All 140 465823 1 3 35 GASKET 0 539 BEARING Camshaft 71 75 All 140 3996776 1 3 70 No 1 71 75 All 140 3983489 4 3 75 BEARING No 2 3 4 5 0 553 PLUG Camshaft Rear Bearing Hole 71 75 All 140 3973130 1 35 PLUG 0 603 ROD Connecting 71 75 All 140 370799 4 26 00 ROD 0 616 BEARING Connecting Rod 71 75 All 140 463259 4 N L std 71 75 All 140 463319 4 5 95 001 U S 71 75 All 140 3715046 4 7 75 002 U S 71 75 All 140 3715048 4 7 75 010 U S 71 75 All 140 3715047 4 7 75 BEARING 020 U S 0 623 BOLT Connecting Rod Bearing Cap 71 75 All 140 460405 8 1 45 BOLT II 24 x 1 B 0 626 NUT Connecting Rod Bearing Cap Bolt 71 75 All 140 527599 8 45 NU1 11 gz 24 0 629 PISTON Engine 71 75 All 140 3992229 4 33 50 w pin S 5 std 3 4977 to 3 4982 71 75 All 140 460584 4 33 50 w pin S 6 std 3 4982 to 3 4987 71 75 All 140 3992230 4 39 50 w pin S 7 001 0 5 3 4987 to 3 4992 71 75 All 140 3997406 4 39 50 w pin S 8 001 0 S 3 4992 to 3 4997 71 75 All 140 3992231 4 w pin 010 0 S 71 75 All 140 3992232 4 39 50 vv pin 020 0 5 71 75 All 140 460593 4 33 50 PISTON w pin 030 0 S GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 1 1 REV 4 81 0 7 0 309 0 629