COOLANT GRILLE OIL SYSTEM 1 062 PULLEY REINFORCEMENT Fan and Water Pump Con 1 78 79 Y W A C 0R F44 EXC SP H PER 346299 1 14 25 PULLEY 2 GROOVE 6 4 DIA 4 78 Y W A T M38 A C SP H PER 346299 1 14 25 PULLEY 2 GROOVE 6 DIA 79 80 Y 350 W SP H PER 3991423 14 25 PULLEY W PUMP 2 GROOVE 5 u DIA 79 Y 350 W CALIF EXC SP H PER 3991425 1 12 05 PULLEV 1 GROOVE 5 A DIA 80 81 Y 3991425 1 12 05 PULLEY 1 GROOVE 5 A DIA 80 81 Y 305 350 EXC SP H PER 346299 1 14 25 PULLEY 2 GROOVE 6 A DIA 58 61 Y 3720616 1 1 25 RElNFURCEMENT CUP SHAPE DEEP 3 1 O D X I D W FOUR sg HOLES NOTE 3 67 68 Y 327 EXC C A C SP H PER 3720616 1 1 25 REINFORCEMENT CUP SHAPE H DEEP 3 0 D X I D W FOUR HOLES NOTE 3 1 064 FAN SPACER Fan Blade NOTE Original equipment fans may be replaced by fens with additional blades higher strength material ar composite bolt circles l 60 Y W FAN DRIVE EOUIP 3770529 1 21 80 FAN 17 5 BLADES 3 BOLT CIRCLE 2 HUB HOLE 61 67 Y EXC A C 396 427 3770529 I 21 80 FAN 17 5 BLADES 3 BOLT CIRCLE 2 HUB HOLE 63 86 Y W A C 3931002 1 22 05 FAN 18 7 BLADES 4 BOLT CIRCLE 66 58 Y 327 W A C 3931002 I 22 05 FAN 18 7 BLADES 4 BOLT CIRCLE V 66 67 Y 427 3955I82 1 20 95 FAN 17 Z 7 BLADES I 88 70 Y EXC A C 3955182 I 20 95 FAN 17 7 BLADES 89 Y 350 427 W H PER A C EXC 3 2BC 3955182 1 20 95 FAN 17 z 7 BLADES 70 Y 350 W A C 3955182 1 20 95 FAN 17 7 BLADES 70 Y 454 W A C 3993889 I 20 80 FAN 17 7 BLADES 71 79 Y EXC A C F44 3991420 1 19 85 FAN 17 K 5 BLADES I 71 73 Y 350 W A C 3991427 1 26 75 FAN 17 J 7 BLADES 71 73 Y 454 W A C 3992095 1 27 00 FAN 17 K 7 BLADES 74 75 Y W A C 342715 1 30 00 FAN 17 1 7 BLADES 78 Y 350 W H PER A C 1ST DESIGN 342715 1 30 00 FAN 17 I 7 BLADES 76 Y 350 W A C EXC H PER IST DESIGN 372501 1 30 00 FAN 17 g 7 BLADES I 76 77 V W A C 469580 1 19 80 FAN 18 Z 7 BLADES I 78 81 Y W A C OR H D RAD 489580 1 19 80 FAN 18 I 7 BLADES 79 B1 Y 350 W SP H PER 14010275 1 25 75 FAN 47MM 5 BLADES 80 Y 305 350 EXC SP H PER 469580 1 19 80 FAN IB z 7 BLADES 81 Y EXC H D C 14010275 1 25 75 FAN 47MM 5 BLADES 81 Y W H D C 469580 1 19 80 FAN 1B X 7 BLADES 80 Y 3814241 I 2 75 SPACER 2 O D X 2 THK I 68 Y 427 EXC A C 3740523 1 1 25 SPACER 2 0 D X THICK I 89 75 Y 3947132 1 3 30 SPACER 2 O D X 2 X THICK 69 Y 427 W H D 3740523 1 1 25 SPACER 2 4 0 0 X THICK 1 066 BELT Fan Gen and Accessory Drive NOTE Refer to chart at the end of Group 1 000 for 1953 1975 V belts NOTE See I belt chart for 1976 1980 part numbers at end of Group 1 NOTE 2 Used for 1975 onlr 1 069 PUMP KIT Engine Coolant NUTE l Use old pump as guide by checking distance from hub to pump body Part number 3998205 has a distance af 3998207 has a distance of h Above pumps do not have adjustable hubs 55 70 Y EXC 396 427 454 3998206 1 N L PUMP KIT NOTE 1 55 70 Y EXC 396 427 454 3998207 1 N L PUMP KIT NOTE 1 1 65 69 Y 396 427 3990993 1 78 00 PUMP KIT 4 66 70 Y 427 W H D 3977830 1 83 50 PUMP KIT 70 Y 454 EXC R D 3990993 I 78 00 PUMP KIT 71 80 Y 305 350 6258551 I 52 00 PUMP KIT 71 74 Y 454 6260822 I 74 25 PUMP KIT I K 1 073 BOLT CAP STUD Coolant Pump 65 67 Y W A C 3779940 1 BOLT ATTACH LWR HOLE 7 874 68 69 Y 396 W A C H PER 3779940 1 BOLT ATTACH LWB HOLE 7 874 70 73 Y 454 W A C 3779940 1 BOLT ATTACH LWR HOLE 7 874 I 64 70 Y 1191141 1 63 CAP HTR HOSE PIPE GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVRDLET I 4 I REV 5 80 I 1 3 1 062 1 073 I