0 308 COVER SEAL SHIELD Valve Spring Cap 41 47 All 839897 6 I 47 70 A Blazer exc 3 53l 55 exhaust A height overall 396 3835333 A R 15 SEAL O rin inlet and a NOTE 1 3835333 Seal also used on 1941 47 models w two groove vglve stem exh ust Note 1 I 55 59 All 265 28 3 3764389 8 30 SEAL inlet valve stem to guide oil Note 2 NOTE 2 This part can be installed on these models only when inlet valve guide boss has been machined to 570 580 dia and 44 height to accept it Used with inlet valves when excessive oil consumption is attributed to valve stem leak 68 70 All 396 3866612 16 20 SEAL valve stem oil inlet and exhaust 55 62 All 8 cyl 63 70 All Blazer exc 3 53 396 3836755A R 15 SHIELD cup shape VII I D x 1 0 D 0 309 CAP ROTATOR ASSY Valve Spring 38 47 All 839367 6 15 inlet w U key round double flange or round stmpd N 080 thick Note 1 47 52 All 53 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3835392 A R 20 inlet and exhaust 1 dia 080 thick Note 1 NOTE 1 On 1941 47 models w two groove valve stems use 3835392 Cap 55 62 All 8 cyl 63 66 All 67 70 All Blazer 6 cyl 3729363A R 20 inlet and exhaust WM O D stamped H Note 2 NOTE 2 Used with necked down stems Full dia stem on some models require cap 3776967 67 70 All Blazer 283 307 327 350 3896934A R 20 valve spring cap A stamped on top of the surface inlet 1 z O D 67 70 All 3 53 5123330 12 39 exhaust valve spring 68 70 All 396 3859909 16 30 inlet and exhaust 1 z O D stamped T 41 55 Comm 6 cyl exc D D 3695373 6 2 35 ROTATOR ASSY exhaust valve Note 3 NOTE 3 For use w 45 degree valves only for preventing excessive heat generation on heavy duty truck or other operations where this condition may be encountered 54 56 D D 6 cyl 63 4 WD 261 3739410 6 2 40 ROTATOR ASSY exhaust valve stamped 55S 64 69 All Blazer 292 327 350 exc L P Gas 70 All Blazer 292 exc L P Gas 3851837 A R 2 40 ROTATOR ASSY exhaust valve Wie O D x 4 thk stamped RCH 0 310 KEY CAP LOCK Valve Stem 38 70 All Blazer exc 3 53 396 838029A R 10 U shape 68 70 All 396 3947880 32 10 green 54 All 55 Comm 1st Ser 3716742 12 35 CAP valve noise silencer 67 70 All 3 53 5116341 24 08 LOCK exhaust 0 311 SEAT Valve Spring 38 49 All 50 53 All 216 54 55 All 235 exc P G 838539 12 15 inlet and exh V4 height overall 67 70 All 3 53 5111467 12 03 exhaust 0 333 ARM Valve Rocker with Adjusting Screw and Nut 50 58 All 235 3837031 3 2 30 exhaust L Ident No 7 dab of blue paint Ident No 3837027 or 3764487 50 58 All 235 3837032 3 2 30 exhaust R ldent No 8 dab of blue paint ident No 3837028 or 3764488 50 58 All 235 3837029 3 2 30 inlet L Ident No 5 dab of blue paint ldent No 3837025 or 3764485 50 68 All 235 3837030 3 2 30 inlet R Ident No 6 dab of blue paint ldent No 3837026 or 3764486 55 70 All Blazer 8 cyl exc 396 3974290 16 1 45 inlet and exhaust O stamped on inside of pad end 59 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3764489 3 2 20 inlet left Ident No 3764485 cast 59 62 All 6 cyl 63 4 WD 6 cyl lst Ser 3764490 3 2 20 inlet right ldent No 3764486 cast 59 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3764481 3 2 20 exhaust left Ident No 3764487 cast 59 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3764482 3 2 20 exhaust right Ident No 3764488 cast 63 70 All Blazer exc 8 cyl 5723551 A R 1 70 inlet and exhaust 68 70 All 396 3860305 16 1 75 inlet and exhaust T 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 31i1 0 308 0 333 0 12 REV 6 71