I GMO 25 123 I 1977 79 151 ENGINE PART II 1 COVER Valve 4 0 386 62 BOLT Int E4 Exh Mild to Cyl Head 3 275 2 REINFORCEMENT Rooker Arm Cover 0 413 63 CLAMP Intake Exh Mild to Hd 3 273 I 3 CAP Oll Filler 1 758 54 BUSHING Exh Cont Valve Shaft to 4 REINFORCEMENT Rooker Arm Cover Mfld 3 647 I Front LH 0 413 85 MANIFOLD Exhaust 3 601 5 BOLT I I B x 8 900 66 MANIFOLD Intake 3 265 l 8 GROMMET C Case Vent Pipe at Air 67 STUD Mfld to Head 24 x I6 I Cleaner 1 745 x 2 3 275 7 PIPE Crankcase Vent 1 762 68 STUD Mild to Head 24 x 16 8 GROMMET C Casa Vent Pipe at x I J 3 275 I Cover Rear 1 745 68 GASKET Int Exh Manifold 3 270 I 9 CLIP Vacuum Pipe 3 142 70 VALVE Intake 0 296 I0 GASKET Rocker Arm Cover 0 423 71 VALVE Exhaust 0 297 11 COVER Air Cleaner 3 410 72 ROD Valve Push 0 426 12 NUT 20 8 921 73 GASKET Cylinder Head 0 289 13 AIR CLEANER Carburetor 3 402 74 BOLT IJ 18 x 8 900 14 GASKET Air Cleaner to Carb 3 406 75 VALVE E G R Back Pressure Trans 3 870 I 15 NUT IJ Z4 6 921 76 BOLT I 6 x 8 900 I 16 CARBURETOR ASM 3 725 77 ADAPTER E G R Back Pressure Valve 3 670 I 17 INSULATOR Carb to Heat Shield See 78 BOLT 18 x 3 8 800 Charts 3 726 79 VALVE E G R 3 670 18 SHIELD Carb Heat See Charts 3 726 80 BOLT 18 x 4 I 8 900 19 GASKET Air Heat See Charts 3 726 61 GASKET E G R Back Pressure Valve 3 680 20 TUBE E G R Distribution Primary 82 TEE Flttlng to E G R E F E Valve 3 660 Bore 3 675 83 HOSE Vacuum I 8 982 21 STUD Carb to Mfld IN 18 x Z4 x 84 VALVE Vacuum Break Delay 3 670 3 I 3 288 85 VALVE Spark Retard Delay OR 2 408 I 22 GASKET Air Cleaner r 3 403 VALVE E F E Emission Cont Vac 3 670 I 23 SCREW I l8 x 8 977 66 BRACKET Pulsalr Check Valve 3 870 l 24 SILENCER Air Cleaner 3 402 87 HOSE Vacuum I D 8 962 25 TUBE Air Heat 3 417 88 PIPE Cheek Valve Hose 3 675 26 SCREW 8 18 x J 8 977 89 GROMMET Vent Pipe 1 745 I 27 I LOCK Valve Spring Cap 0 310 90 NUT I H 20 8 915 I 28 SEAL Valve Oil 0 308 91 WASHER l D x 0 D 9 929 V 29 CAP Intake Valve 0 309 92 NUT I 5 8 915 30 SHIELD Valve Stem Oil 0 308 93 VALVE Fulsair Check 3 670 31 SPRING In DAMPER Valve 0 303 94 LIFTER ASM Valve 0 459 S2 BOLT Cyl Head w Stud 0 293 95 GASKET Coolant Outlet Rubber 1 154 33 BOLT Cyl Head I I 13 x 3 D 0 293 88 HEAD Cylinder 0 269 I 34 PIN Mfld to Head x 0 293 87 BOLT I6 x I 8 900 85 STUD Mfld to Head I6 x sg 3 275 98 STUD Thermo Hsg I6 x Z I 1 252 36 TUBE E G R Diet Sec Bore 3 875 99 HOUSING Thermostat 1 251 37 BOLT Intake to Exhaust Manifold 3 275 I00 SWITCH E F E E G R Cont Cal OR 3 140 38 CLAMP Intake 8 Exh Mild to Hd 3 273 SWITCH E F E E G R Control 3 670 39 WASHER I 0 D x I D 8 929 101 FITTING Thermo Housing 8 866 40 NUT Z4 6 921 102 VALVE Thermo Vac Exc Cal OR 2 410 41 SPRING Accelerator Pull Back 3 459 VALVE E G R Thermal Vao 3 670 42 FITTING Vacuum w Cap 3 278 103 GAUGE ASM Thermo Pin Type 1 150 43 SCREW 10 15 x 8 977 104 BRACKET Alt Adj Eng Llft Exc 44 SWITCH ASM A C Compressor Cut A C Shown 2 277 Off at Carb 9 275 105 BOLT I 6 x 8 900 I 45 BRACKET Throttle Control Cable Mtg 3 454 106 THERMOSTAT Coolant Temp I 246 46 CLIP Throttle Control Idler Rod 3 425 107 GASKET Outlet Fitting Plastic 1 154 47 RETAINER 8 934 I08 OUTLET Eng Coolant 1 153 48 LEVER Throttle Control Idler 3 454 109 BOLT 16 x I 8 900 49 STUD Lever I 18 x Z n O L x 110 GUIDE Push Rod 0 439 i 3 459 I11 STUD Valve Ball r 0 429 I 50 SHIELD Intake Exhaust Manifold 3 802 112 ARM KIT Valve Rocker 0 333 I 51 GASKET Intake Exhaust Manifold N S 113 PLUG Spark 2 270 52 PIN Exhaust Cont Valve Lever 3 647 114 BALL Valve 0 429 53 SCREW 16 x 1 8 977 115 NUT Valve Ball Ret 24 x I 0 429 54 SHROUD Exhaust Manifold 3 4I7 116 HOSE Vacuum I D 8 962 I 55 STUD Shroud to Exh Mild 8 x 3 417 117 TEE C Case Vent Hose 1 745 I 56 SLEEVE E G R Intake Plpe 3 880 118 GROMMET C Case Vent Pipe 1 745 57 NUT E G R Intake Pipe to Mfld 3 680 119 VALVE Crankcase Vent 1 745 58 PIPE E G R Intake to Exh Mfld 3 675 120 PIPE Fuel Make from Stock 8 963 BI 59 BRACKET E G R Pipe to Block 3 675 8 954 6 984 60 BOLT I I6 x J 8 900 121 CLIP Fuel Feed Pipe 3 162 61 SCREW I4 x 4 8 977 122 SCREW M5 3 1 61 x I2 8 977 123 ROD Throttle Cont Idler 3 430 vGM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET IOA 9 18 0 is 0 000 GROUP