153 ENGINE ASSEMBLY 0 153 SHIM Crankshaft Bearing Cap 62 70 All 153 3911010 A R 3 05 front and intermediate 68 70 All 153 r 3928985 A R 3 75 SHIM rear r 0 206 COVER Crankcase Front End 63 70 All 153 3996616 1 15 50 COVER w oil seal 0 207 GASKET Crankcase Front End Cover 62 70 All 153 3923472 1 73 GASKET 0 213 SEAL Crankcase Front End Cover 62 70 All 153 3980267 1 3 50 SEAL 2 IS 0 0 stamped 3980267 0 269 HEAD Cylinder 62 70 All 153 361058 1 144 00 HEAD w studs 0 289 GASKET GASKET KIT Cylinder Head 62 70 All 153 3868830 1 6 00 GASKET 62 70 All 153 3930963 1 17 10 GASKET KIT 0 293 BOLT Cylinder Head 62 70 All 153 3788417 A R 68 BOLT 2 13 x 3 G4 0 296 VALVE Inlet 62 68 All 153 3989083 A R N L VALVE std 62 68 All 153 3995684 A R 8 45 VALVE 003 0 5 62 68 All 153 3995685 A R 8 45 VALVE 015 0 5 62 68 All 153 3995686 A R 8 45 VALVE 030 0 5 69 70 All 153 3989088 A R N L VALVE std 69 70 All 153 3997749 A R 8 45 VALVE 003 0 5 69 70 All 153 3997750 A R 8 45 VALVE 015 0 5 69 70 All 153 3997751 A R 8 45 VALVE 030 0 5 0 297 VALVE Exhaust 62 70 All 153 329275 A R 9 73 VALVE std 62 70 All 153 3995602 A R 9 85 VALVE 003 0 5 62 70 All 153 3995603 A R 9 85 VALVE 015 O S 62 70 All 153 3995604 A R 9 85 VALVE 030 0 5 0 303 SPRING Valve NOTE 7 Used with valves having full dia stems only A NOTE 2 Used only with Camshaft Assy 3790022 NOTE 3 Used only with Camshaft Assy 383 7607 A so part of Camshaft Unit 3837796 64 70 All 153 3735381 A R 2 25 SPRING inlet and exhaust w damper 2 yellow stripes plus maroon aluminum dk green black blue and white or tan stripe Note 3 0 308 SEAL SHIELD Valve Spring Cap 62 70 All 153 3835333 A R N L SEAL O ring inlet and exhaust 62 69 All 153 3836755 A R 35 SHIELD cup shape B l D x 1 B O D 0 309 CAP Valve Spring 62 70 All 153 3729363 A R 68 CAP inlet and exhaust 0 310 KEY Valve Stem 62 70 All 153 3947770 A R 31 KEY 0 333 ARM Valve Rocker with Adjusting Screw and Nut 62 70 All 153 5723551 A R N L ARM ball rod kit inlet and exhaust 0 386 COVER GROMMET Valve Rocker Arm NOTE 7 May be used with or without closed vent NOTE 2 When using on closed vent equipped vehicles it will be necessary to remove center from grommet to permit assembling of fresh air connector into side of cover 63 70 All 153 2770090 1 17 30 COVER w grommet 63 70 All 153 3894337 1 23 GROMMET cover to a cl 5 W l D x 17 az 0 D 1 745 Note 1 2 0 413 BOLT REINFORCEMENT Valve Rocker Cover and Support NOTE 7 Use with Bolt 780076 62 70 All 153 180016 1 20 BOLT 20 x V2 8 900 62 70 All 153 3877670 A R 19 REINFORCEMENT 1 Z 0 L Note 1 0 423 GASKET Valve Rocker Cover 62 70 All 153 3923468 1 2 95 GASKET 17 7 az 0 L 6 holes GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 0 153 0 423 0 12 REV 4 81