Special Replacement Type complete set for one engine per container STD 020 0 S 030 0 S 040 O S 41 49 Pass 235 3704052 z 1 50 52 Pa ss 235 53 Pass 235 exc P G 3704O3O 5 1 9 2 53 Pass w P G 54 63 Pass 235 37130O2 5 9 3713003 3713004 5 37130O5 5 1 i 55 57 Pass 265 3724998 zf 1 9 1 1 57 64 Pass 283 63 64 Pass 230 3747549 sf 3747558 5 9 37 l7567 5 9 1 57 64 Pass 283 63 64 Pass 230 3947057 1 58 61 Pass 348 3755462 5 3755463 3755464 3755465 5 1 62 64 Pass 327 3799438 zf 1 62 64 Pass 327 exc Sp H Per 3799448 3 799458 1 These are Molybdenum premium rings 2 This part is eligible for wholesale compensation 5 These Ring Units contain 732 compression rings Three quarters of the components in this unit are required for 6 cyl models Cromflex Ring Set having chrome plated oil rings top compression ring and chrome plated rail for middle compression ring 0 646 CRANKSHAFT 53 Pass w P G 54 62 Pass 6 cyl 3701486 1 ident No 3701488 Note J3 55 56 Pass 8 cyl 3704840 1 ldent No 3735236 Note 3 57 61 Pass 8 cyl exc T G 348 409 62 64 Pass 283 3889303 1 Note 3 58 61 Pass 348 exc A T 3760427 1 Ident N0 3815822 Note 3 61 Pass 4BC w P G 348 3828836 1 61 62 Pass 409 63 64 Pass 409 3833147 1 Ident No 3838416 62 64 Pass 327 exc Sp H Per F l 3889304 1 Ident No 3782680 Note 3 63 64 Pass 230 3864465 1 Note 3 NOTE 3 When used on A T it will be necessary to remove the pilot bearing 0 649 BEARING Crankshaft Clutch Pilot 38 39 Pass exc C C D C 907321 1 ND 7109 z l D x 1 z O D x Wu 39 64 Pass 3752487 1 bush type z l D 1 z O D x 0 659 BALANCER PULLEY HUB Crankshaft 41 52 Pass 235 3701930 1 weight 7V4 O D pulley V Note 1 53 Pass exc SDL P S 54 Pass exc P S 3704338 1 weight 7V O D pu ley Note 1 55 59 Pass 6 cyl 55 62 Pass 6 cyl exc P S A C A C Cool Pack 3711804 1 w pulley weight 7 O D Note 1 2 NOTE 2 When used on 1955 All 6 cvl 3723794 spacer must be used to accomodate oil slinger 55 61 Pass 8 cyl exc 409 62 64 Pass forged crankshaft w 8 cyl exc Sp H Per F l 409 64 Pass w nodular crankshaft 283 3861970 1 w o pulley hub 4V2 O D 56 64 Pass w C A C Cool Pack 6 cyl 3737510 1 double pulley 7Vz dia 60 62 Pass w P S C A C Cool Pack 6 cyl 3772879 1 w pulley 61 62 Pass 409 2nd design 63 Pass w H Per dual 4BC 409 exc RPO Z11 64 Pass 409 w H Per dual 4BC 3796769 1 w 0 pulley hub SV4 O D 63 Pass 230 64 Pass 230 exc Air A Cond 3826280 1 30 degree left 63 64 Pass w P G 409 1970 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 30 0 17 0 643 0 659