1946 70 ENGINE ASSEMBLIES 0 311 SEAT Valve Spring e Not required in this group See Group 0 309 838539 12 inlet exhaust high overall K 0 333 ARM Valve Rocker V I 50 58 All 6 cyl 3837030 3 inlet right cast 6 or 3837026 50 58 All 6 cyl 3837031 3 exhaust left cast 7 or 3837027 50 58 All 6 cyl 3837032 3 exhaust right cast 8 or 3837028 55 70 All 8 cyl exc 322 348 366 409 427 3974290 I6 raised letter O on inside of pad end 56 59 All 322 1169374 8 right front left rear stamped 374 56 59 All 322 1169375 8 left front right rear stamped 375 59 62 All 6 cyl 1 3 764489 3 inlet left cast 3764485 59 62 All 6 cyl 3764490 3 inlet right cast 3764486 59 62 All 6 cyl 3764481 3 exhaust left cast 3764487 59 62 All 6 cyl 3764482 3 exhaust right cast 3764488 62 67 All 3 53 4 53 6V 53 5135267 A R exhaust L H 62 69 All 3 53 4 53 6V 53 5179954A R injector 63 70 All 230 250 292 5723551 12 daub of blue paint 65 69 All D351 D DH478 2449969 A R w adj screw 58 65 All 348 409 5723552 l6 w ball and nut 66 70 All 366 427 6258611 16 inlet and exhaust 0 334 BUSHING BRIDGE CLEVIS F IN Valve Rocker Arm 62 69 All 3 53 4 53 6V 53 5123700A R exhaust and injector clevis ff 62 69 All 3 53 4 53 6V 53 5150311 A R injector small M O L 62 69 All 3 53 4 53 6V 53 5150318A R injector large 1 W 0 L 1 1 62 69 All 3 53 4 53 6V 53 5135262A R BRIDGE exhaust V 62 69 All 3 53 4 53 6V 53 5150312A R CLEVIS exhaust and injector 62 69 All 3 53 4 53 6V 53 5150314A R PIN exhaust and injector clevis 1 O L x D l 62 69 All 3 53 4 53 6V 53 5123711 A R PIN exhaust clevis bridge end 0 349 SUPPORT BRACKET BOI T Valve Rocker Arm 54 62 All 6 cyl 3783230 2 front and rear cast 3783230 or 3836114 62 69 All 3 53 4 53 6V 53 5116128A Fl BRACKET shaft cast 5116128 65 66 All D351 2461869 6 BRACKET shaft 65 69 All D DH478 2366780 6 BRACKET shaft 65 69 All D351 D DH478 2366782 4 BRACKET shaft end 62 69 All 3 53 4 53 6V 53 5119198A R BOLT shaft 14 x 3 209 M 65 69 All D351 D DH478 2379293 2 BOLT bracket to cyl head 0 352 SHAFT UNIT Valve Rocker NOTE 1 Contains 1 frt and 1 rear valve rocker shaft 1 L H and 1 R H inlet valve rocker arm assy 2 springs and 2 washers 59 62 All 6 cyl 3 786744 1 w arms Note 1 0 353 SHAFT Valve Rocker Arm w Plug 40 62 All 6 cyl 3836138 2 2 grooves on plug end 56 59 All 322 1390967 2 u O D x long 62 69 All 3 53 4 53 6V 53 5116072A R SHAFT ASSY 65 69 All D351 D DH478 2461822 2 SHAFT ASSY 65 69 All D DH478 2449970 2 SHAFT ASSY w brkt vlv rocker 65 66 All D351 2463685 2 SHAFT ASSY w brkt vlv rocker 0 356 PLUG Valve Rocker Arm Shaft 56 59 All 322 1237691 4 cup shape u 0 D 62 69 All 3 53 4 53 6V 53 5151272A R cup shape u 0 D 0 373 WASHER SPACER Valve Rocker Arm Shaft 56 59 All 322 1237679 4 l D x 1 0 D x i thk 65 69 All D351 D DH478 2453472 6 SPACER rocker arm shaft 0 376 SPRING Valve Rocker Arm Eihaft A 55 62 All 6 cyl 3 835508 4 2 n free length 56 59 All 322 1249383 4 end flat type az l D x 1 O D 65 69 All D351 D DH478 2367255 4 0 386 COVER GROMMET Valve IRockar Arm NOTE 1 When using onnmode s with closed vent system it will be necessary to use 1552232 oil filler cap assy drill hole for connector NOTE 2 Use with cylinder head with cast in oil trough on outer edge NOTE 3 Includes Cover Assy 2 Gaskets 3 Cylinder Head Bolts NOTE 4 When using on closed vent equipped vehicles it will be necessary to remove center from grommet to permit assembling of fresh air connector into side of cover NOTE 5 May be used with or without closed vent GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TMt REV 5 79 0 17 0 31 1 0 386