307 ENGINE ASSEMBLY 0 296 VALVE Inlet Con t 68 72 All 307 3995686 A R 8 45 VALVE 030 0 5 73 All 307 3989085 A R N L VALVE std 4 73 All 307 3995681 A R 8 45 VALVE 003 0 5 73 All 307 3995682 A R 8 45 VALVE 015 0 5 73 All 307 3995683 A R 8 45 VALVE 030 0 5 0 297 VALVE Exhaust 68 73 All 307 6263778 A R N L VALVE std 68 73 All 307 3995602 A R 9 85 VALVE 003 0 5 68 73 All 307 3995603 A R 9 85 VALVE 015 0 5 68 73 All 307 3995604 A R 9 85 VALVE 030 0 5 0 303 SPRING SHIM Valve NOTE 1 To be used in place of Va ve Stem Oil Shield when removed at customers request 68 71 All 307 w damper inlet and exhaust 72 73 All 307 3911068 A R 2 15 w damper inlet 72 73 All 307 6263796 8 2 30 SPRING w damper exhaust 68 73 All 307 3731058 A R 29 SHIM gz thk Note 1 0 308 SEAL SHIELD Valve Spring Cap 68 73 All 307 3835333 A R N L SEAL O ring inlet and exhaust 68 73 All 307 3836755 A R 35 SHIELD cup shape B I D x 13 B 0 0 0 309 CAP ROTATOR ASSY Valve Spring 68 73 All 307 3896934 A R 68 CAP valve spring cap A stamped on top ofthe surface inlet 13 W O D 72 73 All 307 6263794 8 4 85 ROTATOR ASSY exhaust valve 0 310 KEY Valve Stem 68 73 All 307 3947770 A R 31 KEY cardonized ident by purple dye 0 333 ARM Valve Rocker with Adjusting Screw and Nut 68 73 All 307 3974290 16 N L ARM ball rod kit inlet and exhaust V stamped on inside of pad end 0 386 COVER GROMMET Valve Rocker Arm 68 72 All 307 6272227 2 17 25 w oil filler cap R H L I I 73 All 307 333866 L H 15 25 left 73 All 307 340268 R H 15 25 COVER right 68 70 All 307 3894337 A R 23 GROMMET cover to a c 1 745 0 413 BOLT REINFORCEMENT Valve Rocker Cover and Support NOTE 1 Use with Bo t 180016 68 73 All 307 180016 1 20 BOLT A 20 x z 8 900 68 73 All 307 387767 OA R 19 REINFORCEMENT 1 Z 0 L Note 1 0 423 GASKET Valve Rocker Cover 68 73 All 307 3933964 2 N L GASKET 0 426 ROD Valve Push NOTE 1 May have one black stripe at each end NOTE 2 Co or marked end to be at va ve rocker arm 68 73 All 307 3796243 A R N L ROD 725 gz 0 L blue stripe Note 1 2 0 429 BALL NUT STUD Valve Push Rod Adjusting 68 73 All 307 3959142 AR 61 BALL 3 6 dia 68 73 All 307 3744341 16 41 NUT valve rocker arm 3 B 24 5 B across the flats x Z 68 73 All 307 3814692 16 89 STUD valve rocker arm ball 003 0 5 Iight blue paint 68 72 All 307 3815892 16 89 STUD valve rocker arm ball 013 OS 3 B 24 2 Z 1 groove on shank light blue paint 0 459 LIFTER Valve or Tappet 68 73 All 307 5232720 16 N L LIFTER hydraulic type 0 519 CAMSHAFT Engine 68 73 All 307 3896929 1 83 50 CAMSHAFT standard Idenr No 3896930 0 539 BEARING Ciamshaft Front or No 1 68 73 All 307 474005 1 12 25 BEARING precision type stamped 1 T GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 REV 4 81 0 53 0 296 0 539