CHASSlS ELECTRlCAL SYSTEM 2 270 PLUG Spark Con t 69 All 230 250 5612826 A R normal service AC4R46N 69 Ser 10 thru 30 350 5569901 A R normal service AC CR43 9 69 Ser 10 thru 30 292 5613313 6 normal service AC CR44N 69 Ser 10 thru 30 396 V 5612425 8 hot plug AC R43N 71 Ser 10 thru 30 Blazer 307 56 13356 8 1 AC R45T 71 G 10 307 5569834 8 AC R45 70 All 250 exc L P Gas 71 72 All Blazer 250 5613357 6 AC R46T 70 All w L P Gas 250 70 All 292 70 All 396 7 1 Ser 10 thru 30 Blazer 292 O 1 350 400 V 72 All Blazer 292 8 cyl 5613355 A R 1 AC R44T 69 All Blazer 307 70 All Blazer 307 350 1 A 71 G 20 30 350 5569993 8 AC R 44 2 271 GASKET Spark Plug Seat sp NOTE 1 Ream or remove internal projections when using on long reach plugs 41 46 All 1555492 6 az I D x 0 0 10 MM copper 36 40 All 1 1 49 64 All 5612328 A R I D x 1 n 0 0 14 MM chrome w retention dimpIe Note 1 1 All All 1555475 A R 14 MM chrome less retention dimple 1 2 273 WRENCH Spark Plug P aa 40 Au 49 66 All 3708444 1 hex 4 length 2 274 PULLEY FAN Generator NOTE 2 When using 1949355 pulley also use 1940994 fan and 3847707 belt V 1 NOTE See Dealer Price Schedule P A 26 for applicable prices NOTE ln some cases double groove pulleys may be used in place of single groove pulleys A Groove A A 1 Shaft No 1 i Fan 0 0 Dia Width Stamped 36 All exc EB EC Q HC HD HE i V 1 Tl 1 E V 39 52 All exc large gen A M 1952 1 Yes 3 1 597667 1 60 62 Ser 10 thru 30 W 30 amp 1 5 Yes 3 1 3711766 1 55 Ser 3 12 volt exc 1 I 1 P S 1 No 5 1 1 1942911 1942911 1 62 Allw 62 amp AC gen 63 66 Ser 10 thru 30 G 10 A w 62 amp AC gen 1 1 1 lst design exc 292 No 1 2 2 3815461 1 63 66 Ser 10 thru 30 w 42 52 55 amp AC gen 8 cyl 2nd 1 A 1 Ser j V 63 64 Ser 10 D D w 42 52 A 55 amp AC gen 4 cyl No 2 1 1949358 1 66 69 All w 61 amp exc P S 72 Ser 10 D 0 1 1 i 72 Ser 10 thru 30 Blazer 6 cyl V exc D D P S 1 72 G 10 thru 30 6 cyl exc P S 72 Sar 20 30 D D 250 exc n 1 P S 1 L L 72 Ser 10 thru 30 Blazer 8 cyl T exc D D 72 G 10 thru 30 8 cyl 1 72 M H C 400 No 2 1 V 1949355 1 63 64 Ser 10 thru 30 w 62 amp AC A 1 gen 292 exc D D 63 1 4 WO w 62 amp AC gen V 283 11st Series 1 f 65 66 Ser 10 thru 30 w 62 1 1 amp 292 lst design A 1 1 exc Air Cond No 3 4 2 3815491 1 63 65 Ser 10 thru 30 w 37 amp AC l gen 283 exc Air Cond 1 GM PARTS DIVlSION GENERAL MOTORS CORPORATION CHEVROLET 72TL 6 REV 5 79 2 11 2 270 2 274