153 ENGINE ASSEMBLY 0 643 RING KIT Piston Service Sets Con t 62 70 All 153 328503 A R 10 95 RING KIT 030 O S 0 646 CRANKSHAFT Engine 62 70 All 153 5743124 1 205 00 CRANKSHAFT 0 649 BEARING Crankshaft Clutch Pilot 62 70 All 153 3752487 1 N L BEARING bush type az I D x 1 gz X 3 4 0 659 PULLEY HUB Crankshaft NOTE ln some cases double groove pulleys may be used in place of single groove pulleys NOTE Crankshaft harmonic balancer is also referred to as torsional damper 62 70 All 153 3793717 1 15 20 stamped 3793717 62 63 All 153 w C A C P S 63 66 All 153 w 62 amp A C Gen 64 65 All 153 w C Deluxe Air Cond 68 70 All 153 3790327 1 15 20 PULLEY front stamped 3790327 65 70 Chevy 153 5743323 1 43 75 HUB crankshaft pulley 0 662 KEY SCREW WASHER Harmonic Balancer and Crankshaft Pulley NOTE 1 Used with pulleys and hubs having a shallow 6 deep keyway only All full depth slots take standard Woodruff key 106751 two short or 144542 one long in Group 8 960 65 66 All w key 3 4 long x S wide x 4 high 3883206 A R 31 crankshaft pulley hub Note 1 65 66 All w key 1 B long x 3 IS wide x gz high 3885092 1 28 KEY crankshaft pulley hub Note 1 62 70 All 153 3793101 1 25 SCREW w Iockwasher 5 6 24 x 9 W 62 70 All 153 3793100 2 23 SCREW w Iockwasher 24 x az 66 69 All 153 3739422 1 79 WASHER balancer 0 666 FLYWHEEL with Ring Gear 62 70 All 153 exc H D Clutch A T 6270045 1 98 00 solid type 62 69 All w H D Clutch 153 366860 1 104 00 solid type cast 3791021 62 70 All w A T 153 3789821 1 44 25 FLYWHEEL 0 669 BOLT Flywheel to Crankshaft 62 70 All 153 exc A T 839756 6 25 6 20 x 1 62 70 All w A T 153 3727207 6 61 BOLT 6 20 x 6 290M steel 0 673 GEAR Flywheel Ring 62 70 All 153 3991408 1 10 90 GEAR 0 679 PAN COVER SCREW Flywheel 69 All w P G 153 3789149 1 6 95 PAN transmission converter 62 70 All 153 exc A T 354497 1 4 30 COVER clutch housing 62 70 All 153 3817006 A R 18 SCREW w washer 20 x Is 62 70 All w P G Torque Drive 153 3924780 A R 28 SCREW w washer 6 18 x B 0 683 HOUSING Flywheel and Clutch 68 70 All 153 3858403 1 54 00 HOUSING clutch Ident No 3840383 less ball stud 0 685 PIN Flywheel and Clutch Housing to Cylinder Block 62 70 All 153 3712745 2 86 PIN clutch and flywheel Z gz x 1 long 0 728 GEAR Crankshaft Timing Steel 62 70 All 153 3836605 1 20 10 GEAR 27 teeth O D stamped 71 0 748 NOZZLE Timing Gear Oil 62 70 All 153 3875950 1 53 NOZZLE 1 gz 0 L 0 787 ROD RETAINER CLIP EXTENSION SWIVEL Clutch Fork Release 62 67 All 153 3791159 1 2 50 fork push I2 0 L 16 thd on end 68 69 All 153 340690 1 1 90 fork push adjusting 4 long 68 70 All 153 3939116 1 2 00 ROD fork push adjusting 7 long 62 69 All 153 3749084 A R 39 RETAINER push rod and swivel 4 037 62 69 All 153 1455017 1 32 CLIP push rod 3 425 68 70 All 153 3840845 1 2 30 SWIVEL fork push rod 1 Z 0 L 8 16 thds GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 0 643 0 787 0 14 REV 4 81