302 ENGINE ASSEMBLY 0 629 PISTON ASSY with Pin Con t 69 All 302 3946876 A R 55 00 PISTON std 69 All 302 3946882 A R 55 00 PISTON 030 0 S 0 639 RETAINER Piston Pin 68 AII 302 3946848 16 41 RETAINER 0 643 RING UNIT Piston Service Sets These are Molybdenum premium rings 2 Single cylinder replacement 67 69 All 302 328506 A R N L RING KIT std Note 2 67 69 All 302 328516 A R 11 95 RING KIT 030 0 S Note 1 2 0 646 CRANKSHAFT Engine 67 All 302 3917265 1 317 00 0 649 BEARING Crankshaft Clutch Pilot 67 69 All 302 3752487 1 N L BEARING bush type az I D x 1 gz O D x 0 659 BALANCER PULLEY Crankshaft NOTE In 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 67 68 All 302 3817173 1 73 75 69 All 302 3947708 1 43 75 BALANCER 67 68 All w Air Cond 302 3850838 1 14 80 PULLEY 7 sl O D 67 All 302 exc P S 68 All 302 3858533 1 13 60 PULLEY double 6 0 D stamped 3766987 69 All 302 3956668 1 15 20 PULLEY 2 groove pulley 0 662 BOLT WASHER REINFORCEMENT Harmonic Balancer and Crankshaft Pulley 67 68 All 302 3815933 1 1 20 BOLT 6 20 x 2 67 69 All 302 3739422 1 79 WASHER balancer 0 666 FLYWHEEL w Ring Gear 67 69 AII 302 366860 1 104 00 FLYWHEEL solid type cast 3791021 0 669 BOLT Flywheel to Crankshaft 67 69 All 302 exc A T 839756 6 25 7 nl 20 x 1 67 69 All w A T 302 3727207 6 61 BOLT 6 20 x 5 M 290M steel 0 673 GEAR Flywheel Ring 67 69 All 302 3991407 1 14 25 GEAR 0 679 PAN COVER SCREW Flywheel 67 69 All 302 3933089 1 7 15 PAN transmission 67 69 All 302 354497 1 4 30 COVER clutch housing 67 69 All 302 3817006 A R 18 SCREW w lockwasher V4 20 x 67 69 All w P G 302 392478 OA R 28 SCREW w lockwasher 18 x 0 683 HOUSING Flywheel and Clutch 67 69 AII 302 3858403 1 54 00 HOUSING clutch ldent No 3840383 0 685 PIN Flywheel and Clutch Housing to Cylinder Block 67 69 All 302 3712745 2 86 PIN clutch and flywheel z az x 1 long 0 724 CHAIN Camshaft Timing 67 69 All 302 346261 1 18 60 CHAIN early link type 0 728 SPROCKET Crankshaft Timing Steel 67 69 AII 302 3896959 1 11 85 SPROCKET 18 teeth 2 S O D early link type 0 736 SPROCKET Camshaft Timing 67 69 All 302 340235 1 18 80 SPROCKET 36 teeth iron early link type 0 738 PIN Camshaft Sprocket 67 69 All 302 3836903 1 23 PIN dowel 4 x 5 B solid 0 787 ROD CLIP RETAINER Clutch Fork Release 67 69 All 302 3973076 1 3 15 fork push GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 0 629 0 787 0 48 REV 4 81