ENGINE CLUTCH 0 646 CRANKSHAFT Engine C0n t NOTE 3 With standard size crankshaft main bearing journals as follows position 1 2 3 4 2 299 inch dia and rear position 5 2 430 inch dia NOTE 4 With standard size crankshaft main bearing journals as follows position 1 2 3 4 2 449 inch dia and rear position 5 2 448 inch dia NOTE 5 Must be used with Piston and Pin Asm 3942547 or 3942542 or 3942543 57 61 Y 8 CYL 3889303 1 265 00 CRANKSHAFT NOTE 1 62 67 Y 327 EXC SP H PIER F 3889304 1 265 00 CRANKSHAFT IDENT NO 3782680 NOTE 1 3 62 67 Y 327 W SP H PER F 3838495 1 320 00 CRANKSHAFT IDENT NO 2680 NOTE 3 64 68 Y 327 3941172 1 265 00 CRANKSHAFT NOTE 4 65 Y 396 3882841 1 347 00 CRANKSHAFT NOTE 1 66 68 Y 427 EXC SP H PIER H D 3882849 1 307 00 CRANKSHAFT NOTE 1 66 69 Y 427 W SP H PER 3882842 1 347 00 CRANKSHAFT 67 Y 427 W H D 3879621 1 347 00 CRANKSHAFT 68 Y 327 EXC SP H PER 3930809 1 265 00 CRANKSHAFT NOTE 1 2 68 69 Y 427 W H D 3967811 1 395 00 CRANKSHAFT NOTE 1 69 80 Y 350 EXC H PER SP H PER 3932444 1 265 00 CRANKSHAFT NOTE 1 69 80 Y 350 W H PER SP H PER 3941184 1 320 00 CRANKSHAFT NOTE 1 5 69 Y 427 EXC SP H PiER H D AL CYL AND CASE 3882849 1 307 00 CRANKSHAFT NOTE 1 70 Y 454 W A T 336782 1 307 00 CRANKSHAFT 70 Y 454 W M T EXC H D 3975945 1 307 00 CRANKSHAFT 71 Y 454 W SP H PER 3963523 1 408 00 CRANKSHAFT 71 72 Y 454 W H PER 3993878 1 408 00 CRANKSHAFT 73 74 Y 454 336782 1 307 00 CRANKSHAFT 80 Y 305 361982 1 265 00 CRANKSHAFT NOTE 1 81 Y 350 3932444 1 265 00 CRANKSHAFT NOTE 1 0 649 BEARING Crankshaft Clutch Pilot 53 81 Y W M T 3752487 1 N L BEARING BUSH TYPE az I D 1 2 O D X 4 0 659 BALANCER PULLEY Crankshaft NOTE ln some cases double groove pu eys may be used in place of single groove pulleys NOTE 1 Assemblies are solidly bolted for driving balancer onto crankshaft when special driving tool is not available Bolts must be removed after ba ancer is assembled to engine NOTE 2 When using this part use 3883206 key 57 61 Y 3896904 1 43 75 BALANCER 62 65 Y FORGED CRANKSHAFT W 8 CYL EXC SP H PEER F I 396 3896904 1 43 75 BALANCER 62 68 Y 327 W F SP H PER 3817173 1 73 75 BALANCER W O PULLEY HUB 8 O D NOTE 2 65 69 Y 396 427 W SP H PER 3860010 1 73 75 BALANCER W O PULLEY 8 0 D 65 69 Y 396 427 EXC SP H PER H D AL CYL AND CASE 3860008 1 73 75 BALANCER 66 Y 4BC W FORGED CRANKSHAFT 283 327 EXC SP H PER 3896903 1 43 75 BALANCER 67 Y 327 EXC SP H PER 3896903 1 43 75 BALANCER W O PULLEY 67 69 Y 427 W H D AL CYL AND CASE 3879623 1 GP9 50 BALANCER 68 Y 327 EXC SP H PER 3914684 1 43 75 BALANCER 69 71 Y 350 EXC H PER SP H PER 6272222 1 43 75 BALANCER 69 80 Y 350 W H PER SF H PER 62722 24 1 73 75 BALANCER 70 Y 454 EXC H D 3963529 1 73 75 BALANCER 71 72 Y 454 W H PER 3963529 1 7 3 75 BALANCER 71 Y 454 W SP H PER 3963530 1 79 00 BALANCER 72 79 Y 350 EXC SP H PER 6272221 1 4 3 75 BALANCER 73 74 Y 454 330849 1 43 75 BALANCER 80 Y 305 350 EXC SF H PER 6272221 1 43 75 BALANCER 81 Y 350 6272221 1 43 75 BALANCER 55 57 Y 8 CYL EXC C A ZI DUAL 4BC F 3755820 1 12 90 PULLEY 58 61 Y 3756328 1 15 60 PULLEY 62 Y EXC SP H PER F I 37563128 1 15 60 PULLEY 62 65 Y W SP H PER F EXC 396 3858533 1 13 60 PULLEY 2 GROOVE 65 H DIA 63 66 Y EXC H PER SP HI PER F I C A C 3744043 1 13 60 PULLEY DOUBLE 65 B O D PAINTED BLACK j WAREHOUSING AND DISTRIBUTION D V SI N 0F GENERAL MOTORS CORPORATION CHEVROLET 14 REV 5 81 0 17 0 646 0 659