0 309 CAP l 0 l A l 0K ASSY Valve Spring u u d 38 47 ALL exh w U key octagon or roun imp a x 213163351 6 15 39 47 ALL inlet w U key round d ubl6 flunqe or round stmpd IN 080 thick 83913671 6 10 47 52 ALL 53 62 PASS 6 cyl exc 1955 w P G 53 56 Ser 3 6 cyl exc D D 1 1 D 57 59 Ser 3 6 cyl 60 GE Ser 10 thru 30 6 cyl inlet cmd exhaust 55 56 D D 6 cyl 53 55 1 TON H D 235 lst Ser 53 55 2 TON lst Ser 55 PASS w P G 6 cyl inlet only 1 dia 0BO thick 38353921 A R 12 55 PASS CORVETTE w P G 6 cyl exhaust w dual valve springs 1 O D 3836134 6 12 55 62 PASS CORVETTE 283 327 55 59 Ser 3 8 cyl 60 62 Ser 10 thru 30 8 cyl 5961 PASS will Per 348 inlet cmd exhaust 1 O D stamped 63 ALL CORVETTE exc 409 H 3729363 A R 15 I 58 60 PASS 348 exc H Per Sp H Per 61 PASS 348 exc H Per w reg cam Sp H Per inlet and exhaust 1 O D 3747309 A R 20 60 61 PASS w Sp H Per 348 61 PASS H Per w reg cam 348 63 PASS 409 inlet and exhaust 11 O D 3776967 A R 20 61 63 PASS 409 inlet and exhaust 1 O D 3815520 16 20 41 55 PASS 6 cyl exc P G 41 55 COMM 1 TON 6 cyl exc D D 41 53 2 TON ROTATOR ASSY exhaust valve 3695373T 6 1 85 54 56 D D 6 cyl 54 55 2 TON lst Ser 54 UQ TON 1 l D 235 ROTATOR ASSY exhaust valve stamped 55S 3739410 6 1 80 63 Ser 10 thru 30 292 RO l ATOR ASSY exhaust valve stamped RCC 31317362 8 1 80 TNOTE For use w 45 valves only tor preventing excessive heat generation on heavy duty truck or other operations where this condition may be encountered INOTE On 1941 47 models w two gro0ve valve stems use 3835392 Cap NOTE Used with necked down stems Full dia stem on same models require cap 3776967 0 310 KEY CAP Valve Stem 38 63 ALL CORVETTE exc 348 409 58 61 PASS w dual valve springs 348 U shape 83801291 A R 05 58 63 PASS 348 409 exc dual valve springs orcmge 3747310 32 05 54 ALL 55 COMM UTIL lst Ser CAP valve noise silence 13716742 12 15 TNOTE 348 Hi Performance Engines having dual valve springs require O ring seals and valve stem keys as follows Dual spring valve with NECKED DOWN or reduced diameter stem tip section use 3835333 seal and 838029 key Dual spring valve with lull diameter stem tip section use 3756314 seal and 3747310 key 0 311 SEAT Valve Spring 38 49 ALL exc DC 50 53 ALL 216 54 55 ALL 235 exc P G inlet and exh M height overall 838539 12 05 0 333 ARM Valve Rocker with Adiusrtlng Screw and Nut p 41 49 ALL 50 53 ALL 216 exhaust L cast 839461 839459 3 1 65 9 1962 U 3U9 0 333 hevrolet Motor Division General Motors Corporation