TPO 35 1973 78 250 L6 ENGINE PART I1 EXC INTREGAL CYL HEAD MANIFOLD 1 COVER Valve Rocker Arm 4 0 388 33 PIN Heat Control Valve Anchor N S 2 CAP Crankcase Oil Filler 1 758 34 THERMOSTAT Manifold Heat Control 3 BOLT Hex 1 4 20 x 1 2 8 900 Valve 3 840 4 REINFORCEMENT Valve Rocker Arm 35 SHAFT Exhaust Manifold Valve N S Cover Bolt 0 413 36 STUD Intake Exhaust Manifold 3 275 5 GASKET Valve Rocker Arm Cover 0 423 37 BOLT Hex 3 8 I6 x I 3 B 8 900 6 CLIP Spark Control Pipe 2 420 38 CLAMP Intake Exhaust Manifold 3 273 7 GROMMET Vent Hose Connector 1 745 39 GASKET E G R Valve 3 880 8 KEV Valve Spring Cap 0 310 40 VALVE EGR Emission 3 870 9 CAP Valve Spring 0 309 41 CLAMP EGR Valve 3 880 10 SHIELD Valve Spring Oil 0 308 42 LOCK EGR Valve Clamp Stud 8 932 11 SPRING Valve 0 303 43 STUD 5 18 18 x 5 16 Z4 x 1 1 4 8 981 12 HEAD Cylinder 0 268 44 NUT Hex 3 B Z4 8 915 13 BOLT Hex 7 18 14 x 1 8 900 45 VALVE Exhaust 0 297 14 WASHER Lock 7 IG 8 931 48 VALVE Intake 0 296 15 BRACKET Engine Lifting Rear N S 47 GASKET Cylinder Head 0 289 16 GASKET Intake and Exhaust Manifold 3 270 48 SWITCH Water Temperature 1 150 17 STUD Intake and Exhaust Manifold 49 PLUG Engine Block Cylinder Head 0 034 Clamp u 3 275 50 NIPPLE Thermal By Pass Hose 8 886 18 CONNECTOR Crankcase Vent N S 51 GASKET Thermostat Housing 1 252 19 STUD Carburetor to Manifold 3 275 52 HOUSING Thermostat 1 251 20 CLAMP Intake and Exhaust Manifold 3 273 53 BOLT Hex 3 8 16 x 1 8 900 21 NUT Hex 3 8 14 8 915 54 STUD A C Compressor Adj Brkt 0 004 22 MANIFOLD Fuel Intake 3 285 55 THERMOSTAT Coolant Temperature 1 248 23 GASKET Intake to Exhaust Manifold 3 272 56 GASKET Coolant Outlet 1 154 24 MANIFOLD Exhaust 3 801 57 OUTLET Coolant 1 153 25 PLUG Exhaust Manifold N S 58 SWITCH EGR Vacuum Valve Control 3 870 26 STUD Exhaust Manifold to Exhaust 59 BOLT Hex 3 B I6 x 3 4 8 800 Pipe Flange 3 275 60 BRACKET Engine Lifting Front N S 27 GASKET Exhaust Pipe to Manifold 3 611 61 BOLT Cylinder Head 0 293 28 WASHER Lock 3 8 8 931 62 PLUG Spark 2 270 29 BOLT Hex 3 8 16 x Z 8 900 63 ROD Valve Push 0 428 30 BUSHING Manifold Heat Control 84 ROTATOR Valve Spring 0 309 Valve 3 647 65 STUD Valve Push Rod Adjusting 0 429 31 VALVE Manifold Heat Control N S 66 ARM Valve Rocker 0 333 32 SPRING Manifold Heat Control Valve 87 BALL Valve Rocker Arm 0 429 Stop 3 841 68 NUT Valve Push Rod Adjusting 0 428 V WAREHOUS NG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATl0N LT TFlUCK 5 IA 2 83 0 17 0 000 GROUP