1946 70 ENGINlE ASSEMBLIES 0 207 GASKET Crankcase Front End Cover 38 62 All 6 cyl exc Diesel 838206 1 12 attach holes 55 70 All 265 283 307 327 350 3799620 1 10 attach holes 2 dowel holes 58 65 All 348 409 3799600 1 fiber and rubber 12 holes fs 62 69 All 3 53 4 53 5121082 1 engine frt cover upper 62 69 All 3 53 4 53 5116386 1 engine frt cover lower 62 66 Ser 80 6V 53 5124055 1 engine frt cover upper 62 66 Ser 80 6V 53 5119368 1 engine frt cover lower 63 70 All 6 cyl exc Diesel 3923472 1 66 69 All D351 D DH478 2367707 1 frt cover cap 65 67 All D351 D DH478 68 Tilt DH478 2454795 1 timing gear cover 65 69 All D351 D DH478 2455660 1 frt cover 66 68 All 366 427 3860096 1 10 holes 69 70 All 366 427 3935449 1 0 211 SHEDDER Crankcase Front End Cover 56 59 All 322 1343029 1 front oil seal 2 i l D x 2 i 0 D 0 213 SEAL SLEEVE Crankcase Front End Cover s 38 69 All exc 322 366 427 Diesel 70 All exc 366 427 3980267 1 2 i O D stamped3980267 56 59 All 322 1305044 1 u dia x 7 long 62 69 All 3 53 4 53 5198503 1 oil oversize 62 69 All 3 53 4 53 6V 53 5116224 1 oil 62 69 All 3 53 4 53 6V 53 5116476 2 cam and balancer oil 66 70 All 366 427 3860095 1 3 O D stamped 3860095 62 69 All 3 53 4 53 6V 53 5198502 1 SLEEVE oil g 0 253 INSERT PLUG Exhaust Valve 62 69 All 3 53 4 53 6V 53 5116361 A R std 1 u 0 D 62 69 All 3 53 4 53 6V 53 5196752 A R 010 oversize 1 0 D stamped GM I 10 65 69 All D DH478 2454134 9 56 58 All 322 663032 A R PLUG cyl head core hole 0 269 HEAD Cylinder I NOTE 1 838539 seat must be used on jobs vv o hydraulic valve lifters fa NOTE 2 On 1953 thru 1955 models with Bourdon tube type heat indicator gauge it is also necessary to use Adapter Bushing 3837 160 i NOTE 3 Part 838539 is not required if replaced head has spring seats which can be transferred NOTE 4 When using 377301 1 it will be necessary to use 3910298 valve rocker cover unit NOTE 5 Extreme care should be exercised when selecting replacement Inlet and Exhaust Valves for 1963 Sei 60 327 cu in Engines Approximately 120 0 Cylinder Heads were used in production which have one 1 or more 003 O S Valves These Cylinder Heads may be identified by the numeral 3 stamped directly be ow the casting number NOTE 6 On 1957 1959 models it will be necessary to use 1 3910298 valve rocker cover unit NOTE 7 RH only for 1969 70 application NOTE 8 Exhaust Valve Rotator 3819334 is used with this Head Assy in late 1962 production When using this Head Assy as replacement on early 1962 production models the old Exhaust Valve Rotaton 3735275 can be used but Valve Spring Shim 3764539 must be used to obtain the correct valve spring height NOTE 9 When using on models prior to 1968 use pipe plug 444667 or 444746 to plug water temp switch hole NOTE 10 Pipe plug 444746 is to be discarded when water temp switch is mounted in cylinder head 53 62 All 235 3836954 1 e ldent No 3836848 Note 1 2 3 54 62 All 261 3836963 1 ldent No 3836850 57 59 All 283 60 66 Ser 60 283 327 67 Ser 50 60 327 exc TDM 67 Ser 50 TDM 327 68 All 327 69 70 Ser 40 350 exc L P Gas 69 Ser 50 350 exc L P Gas 3958607 1 w studs Note 5 6 7 59 61 All 348 3815856 2 w valve rocker studs ldent No 3815857 60 66 Ser 50 283 67 Ser 40 283 68 All 307 3958602 2 w valve rocker studs 62 65 All 348 409 3820640 2 w valve rocker studs ldent No 3819333 Note 8 63 70 All 230 250 292 exc L P Gas fl 69 70 Ser 40 50 w L P Gas 6 cyl A 6259693 1 w studs A 65 66 All D351 2455610 2 less valves 65 66 All D DH478 2454137 2 less valves i 65 66 All D351 I 2455609 2 w valves F GM PARTS DIVISION GENERAL MOT ORS CORPORATION CHEVROLET 72TM REV 5 79 0 11 0 207 0 269