307 ENGINE ASSEMBLY 0 308 SEAL SHIELD Valve Spring Cap 68 73 All 307 3835333A R 19 0 ring inlet and exhaust 4 4 68 73 All 307 3836755A R 20 SHIELD cup shape D x 1 0 D 0 309 CAP ROTATCIR ASSY Valve Sprlng 68 73 All 307 3896934A R 44 valve spring cap A stamped on top of the surface inlet 1 if 0 D 72 73 All 307 8263794 8 3 25 ROTATOR ASSY exhaust valve 0 310 KEY Valve Stem 68 73 All 307 3947770 A R 14 cardonized ident by purple dye repl 838029 0 333 ARM UNIT Valve Rocker with Adiustlng Screw and Nut 68 73 All 307 z 3974290 16 2 65 Inlet and exhaust V stamped on inside of pad end 0 386 COVER ASSY GROMMET Velve Rocker Arm 68 72 All 307 6272227 2 11 40 w oil filler cap Fl H L H 73 AII 307 333866 L H 10 05 left 73 All 307 333867R H 10 05 right 68 70 All 307 3894337 A R 13 GROMMET cover to a cl 1 745 0 413 BOLT REINFORCEMENT Valve Rocker Cover and Support 68 73 All 307 180016 1 08 20 x z 8 900 68 73 All 307 3877670A R 14 REINFORCEMENT 1 0 L Note 1 NOTE 7 Use with Balt 7800ld 0 423 GASKET Valve Rocker Cover V 68 73 All 307 3933964 2 2 00 0 426 ROD Valve Push 68 73 All 307 3796243A R 2 35 7 a 0 L blue stripe Note 1 Z NOTE 7 May have one black strlpa at each end NOTE 2 Cu or marked end ra be at valve rocker arm 0 429 BALL NUT STUD Valve Push Rod Adjusting 68 73 All 307 3959142A R 42 dla 66 73 All 307 374 4341 16 24 NUT valve rocker arm Z4 across the flats x Vt 68 73 All 307 3814692 16 59 STUD valve rocker arm ball 003 0 5 light blue paint 68 72 All 307 3815892 16 59 STUD valve rocker arm ball 013 0 S 24 2 t 1 groove on shank light blue paint 0 459 TAPPET Valve or Lifter 68 73 All 307 5232670 18 N L hydraulic type 0 519 CAMSHAFT Engine NOTE Engine Camshaft B aa in Oil 7050800 Group l 85lL should be used when installing new camshafrs 68 73 All 307 3896929 1 53 50 standard ldent No 3896930 0 539 BEARING Camshaft Front or No 1 68 73 All 307 3723584 1 2 65 precision type stamped 1 0 543 BEARING Camshaft No 2 Front Intermediate 68 72 All 307 3723585 I 2 65 precision type stamped 2 73 All 307 3723584 1 2 65 0 539 0 546 BEARING Camshaft Center and Rear Intermediate 68 72 All 307 3723586A R 2 65 stamped 3 and 4 73 All 307 3723584 2 2 65 0 539 0 549 BEARING Camshaft Rear 68 72 All 307 3723585 1 2 65 precision type stamped 2 0 543 73 All 307 3723584 1 2 65 0 539 0 553 PLUG Camshaft Bearing Hole cup type in cylinder block 68 71 All 307 lst design 3704158 1 24 2 dia 7I 73 All 307 2nd design 3997752 1 14 rear brg has mfg ident mark 0 603 ROD ASSY Connecting Less Dipper I 68 73 All 307 3916396 8 14 05 tT GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 0 308 0 603 M4 REV 4 77