56 59 ALL 322 exhaust l O D 1170478 8 60 53 54 ALL 348 409 inlet and exhaust 1 0 D 3747309 16 25 62 64 DIESEL exhaust 5123330 A R 34 55 62 ALL 6 cyl ROTATOR ASSY exhaust valve I stamped RC 3739410 6 1 85 56 59 ALL 322 ROTATOR ASSY exhaust 1 0 D 1170688 8 1 95 58 62 ALL 348 409 lst design ROTATOR ASSY exhaust 1 O D x thk stamped GM f 37352750 8 1 85 62 64 ALL 348 409 2nd design ROTATOR ASSY exhaust 1 O D x thk stamped GM A 3819334 8 1 85 55 62 ALL 8 cyl exc 322 348 409 ROTATOR ASSY exhaust 1 O D 63 Ser 50 60 292 283 327 stamped RCC 38173621 8 1 85 64 Ser 50 60 292 283 327 ROTATOR ASSY exhaust 1 O D thk stamped RCH 3851837 A R 1 80 TNOTE 1955 and early 1956 jobs also require Rocker Arm 3746241 and Valve Spring and Darnpener Assy 3732814 See T S B 392 1956 GBNOTE Used in early 1962 production See Group 0 269 Head Assy 3820640 for note relating to usage NOTE Used in late 1962 production See Group 0 269 Head Assy 3820640 for note relating to usage 0 3 0 KEY KEY UNIT LOCK Valve Stem 55 64 ALL exc 322 348 409 rib on I D Z O D x long 838029 A R 05 56 59 ALL 322 spring cap sA I D x long 3751045 32 15 58 64 ALL 348 409 rib on I D 0 D x long orange 374731 0 32 05 56 59 ALL 322 KEY UNIT cap 3752684T 1 0 308 62 64 DIESEL LOCK exhaust valve spring 5116341 A R 32 NOTE Use with 3727391 Seal O Ring TNOTE Consists of 32 3751045 Key and 16 3727391 Seal 0 3 SEAT Valve Sprlng 62 64 DIESEL exhaust 5111467 A R 03 0 333 ARM Valve Rocker 55 58 ALL 6 cyl inlet left cast 5 or 3837025 3837029 3 1 70 j 55 58 ALL 6 cyl inlet right cast 6 or 3837026 3837030 3 1 70 55 58 ALL 6 cyl exhaust left cast 7 or 3837027 3837031 3 1 70 55 58 ALL 6 cyl exhaust right cast 8 or 3837028 3837032 3 1 70 55 64 ALL 8 cyl exc 322 348 409 less adjusting nuts stamped X 3746241 I6 75 56 59 ALL 322 right front left rear tamped 374 1169374 8 1 95 56 59 ALL 322 left front right rear stamped 375 1169375 8 1 95 58 64 ALL 348 409 dab of blue paint 3732765 16 75 59 62 ALL 6 cyl inlet left cast 3764485 3764489 3 1 70 59 62 ALL 6 cyl inlet right cast 3764486 3764490 3 1 70 59 62 ALL 6 cyl exhaust left cast 3764487 3764481 3 1 70 59 62 ALL 6 cyl exhaust right cast 3764488 3764482 3 1 70 62 64 DIESEL exhaust L H 5126247 A R 8 45 62 64 DIESEL exhaust R l 5126248 A R 8 45 62 64 DIESEL illlector 5179954 A R 7 28 63 64 ALL 230 292 dab of blue paint 3788498 12 75 64 ser 50 60 8 cyl raised letter O on inside of pad end 3843359 16 75 0 334 BUSHING BRIDGE CLEVIS PIN Valve Rocker Arm 62 64 DIESEL exhaust and injector clevis 5123700 A R 72 62 64 DIESEL injector small O L 5150311 A R 12 62 64 DIESEL injector large 1 0 L 5150318 A R 13 62 64 DIESEL BRIDGE exhaust 5126154 A R 1 83 62 64 DIESEL CLEVIS exhaust and injector 5150312 A R 2 16 62 64 DIESEL PIN exhaust and injector clevls 1 O L x Z LD 5150314 A R 12 62 64 DIESEL PIN exhaust clevis bridge end 5123711 A R 12 0 349 SUPPORT BRACKET BOLT Valve Rocker Arm 55 62 ALL 6 cyl front and rear cast 3783230 or 3836114 3783230 2 75 56 59 ALL 32 2 BRACKET shaft cast 1343060 1343060 8 1 50 62 64 DIESEL BRACKET shaft cast 5116128 5116128 A R 1 79 62 64 DIESEL BOLT shaft 14 x 3 290 M 5119198 A R 91 0 3 Chevrolet Motor gags HD1 128 G n r I Motors Corparatlan REVISED JANUARY 1 1964