1946 70 ENGINE ASSEMBLIES 0 303 SPRING SHIM Valve Con t 66 70 All 366 427 3887125 16 inlet and exhaust w damper 1 u I D x 2 free length 6 z coils 67 70 All 283 307 327 350 3911068 16 w damper 55 70 All 265 283 307 327 350 3731058 A R SHIM x u O D x u thick Note 2 66 70 All 366 3875916 8 SHIM inlet spring I D x 1 0 D x 3 1 I4 thick 68 70 All 427 a 69 70 All 366 3891521 8 SHIM inlet spring exhaust spring 0 308 SEAL SHIELD Valve Spring Cap 47 70 All exc 322 348 366 409 427 Diesel 3835333A R O ring 58 65 All 348 409 3756314 16 valve stem oil O D 59 All 283 3764389 8 inlet valve stem to guide oil 65 69 All D351 D DH478 2194132 6 inlet valve stem 66 70 All 366 427 l 460527 16 valve stem oil inlet and exhaust 55 66 All 8 cyl exc 322 348 366 409 63 66 Ser 50 60 6 cyl exc Diesel 67 70 All exc 366 427 Diesel 3836755A R SHIELD cup shape I D x 1 O D 58 65 All 348 409 3732891 16 SHIELD valve stem oil 0 309 CAP ROTATOR ASSY SEAT Valve Spring I NOTE 1 On 1941 47 models w two 2 groove va ve stems use 3835392 cap NOTE 2 Used in early 1962 production See Group 0 269 Head Assy 3820640 for note re ating to usage 47 52 All inlet and exhaust 53 56 D D 6 cyl 53 55 1 g Ton H D 235 53 55 2 Ton 55 62 All 6 cyl 3835392 A R inlet 1 dia 080 thick Note 1 55 62 All 8 cyl exc 322 348 409 inlet 59 Ser 6 w L D 283 60 62 Ser 50 60 283 327 63 66 Ser 50 60 exc Diesel 348 366 67 70 All 6 cyl 3729363A R exhaust 1 i 0 D stamped H 58 65 All 348 409 3747309 16 inlet and exhaust l Is O D 62 69 All 3 53 4 53 6V 53 5123330 A R exhaust 3 65 69 All D351 D DH478 2459784 12 inlet and exhaust 66 All 366 3859909 16 inlet and exhaust 1 az O D stamped T 66 70 All 366 427 3864900 16 inlet and exhaust 1 u 0 D stamped I O 67 70 All 283 307 327 350 3896934 8 inlet A stamped on top surface 1 0 D 54 56 D D 6 cyl 54 55 2 Ton I I 54 1 I Ton H D 235 55 62 All 6 cyl 3739410 6 ROTATOR ASSY exhaust valve stamped RC 55 62 All 8 cyl exc 322 348 409 63 66 Ser 50 60 292 283 327 I 67 70 All 283 292 307 327 350 exc L P Gas 6263794A R ROTATOR ASSY exhaust 1 i 0 D x 4 thk stamped RCH 65 69 All D351 D DH478 2460397 12 ROTATOR ASSY inlet and exhaust 66 70 All 366 427 exc L P Gas 330848 8 ROTATOR ASSY exhaust 38 49 All exc D C 50 53 All 216 Y 54 55 All 235 838539 12 SEAT inlet exhaust 4 high overall 62 69 All 3 53 4 53 6V 53 51 11467A R 4 SEAT exhaust 0 310 KEY LOCK Valve Stem 38 66 All exc 322 348 366 409 Diesel I 65 70 All D351 D DH478 68 69 All exc 366 427 Diesel 838029 A R rib on I D az O D x long 58 65 All 348 409 66 70 All 366 427 3947880 32 green 62 69 All 3 53 4 53 6V 53 5116341 A R LOCK exhaust valve spring I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM 0 303 0 310 I 0 16 REV 5 79