66 70 All 250 3876840 1 94 45 Note 1 66 69 Pass w Sp H Per 427 3882842 1 100 20 66 68 Pass 427 exc Sp H Per 69 Pass Police w H Per 427 3882849 1 107 05 Note 1 67 68 Chevy Camaro 350 3912335 1 99 25 Note 2 67 Camaro 302 3917265 1 98 60 68 All 307 327 exc Sp H Per 3930809 1 97 40 Note 1 2 68 Chevy Chevelle w Sp H Per 327 3914681 1 112 95 68 Camaro 302 3923278 1 112 95 69 Camaro 302 3941176 1 108 60 69 Pass 427 exc H Per Sp H Per Police 3937739 1 105 60 69 70 All 307 327 3941172 1 100 30 Note 1 69 70 All 350 exc Sp H Per 3932444 1 102 00 Note 1 NOTE 1 When used on A T it will be necessary to remove the pilot bearing NOTE 2 Some early 1968 327 models use 1967 engines built to 1968 spec Refer to Note 4 in Group 0 033 70 All w Sp H Per 350 3941184 1 105 50 Note 1 70 All w 2BC 400 3951528 1 107 30 Note 1 70 Pass Chevelle w A T 454 exc Sp H Per 3967463 1 110 80 Note 1 70 Chevelle 454 exc Sp H Per Monte Carlo A T 3975945 1 115 20 70 All w Sp H Per 454 3963523 1 110 80 Note 1 NOTE 1 When used on A T it will be necessary to remove the pilot bearing 0 649 BEARING Crankshaft Clutch Pillot 62 70 All 3752487 1 95 bush type z I D x 1 1 O D x V4 0 659 BALANCER PULLEY HUB KEY Crankshaft NOTE Crankshaft harmonic balancer is also referred to as torsionaI damper 62 67 Chevy 6 cyl 64 65 Chevelle 6 cyl exc Air Cond 65 Pass 230 exc Air Cond 66 67 Chevelle Camaro 230 exc Air Cond 67 Pass 230 68 69 Chevy Chevelle Camaro w P S 230 exc Air Cond 70 All 230 3826280 1 13 25 w pulley timing mark on frt face 30 degree left 64 65 Chevelle w 4BC forged crankshaft 8 cyl exc Sp H Per 65 Chevy w 4BC forged crank 283 65 Chevy Chevelle w forged crank 327 65 Pass w forged crankshaft 8 cyl exc Sp H Per F I 396 409 65 67 All w nodular crankshaft 283 68 All 307 3861970 1 16 30 w 0 pulley hub 4Vz O D 65 Pass w H Per dual 4BC 409 3796769 1 17 60 w o pulley hub 5V O D 65 Pass w P G 409 65 Pass 409 exc P G H Per dual 4BC 3838371 1 18 15 w o pulley hub 5Vz O D 65 66 Chevelle w Air Cond 6 cyl 65 Pass w Air Cond 6 cyl 67 Chevelle Camaro w Air Cond 250 3850666 1 13 00 w o pulley hub 6V 0 D 65 70 All 396 427 exc Sp H Peny 70 All w 4BC 400 3860008 1 17 50 w 0 pulley 7Vl O D 65 70 All w Sp H Per 396 427 3860010 1 17 50 w o pulley 8 0 D j 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 30A REV 2 71 0 5 0 646 0 659