Outside Shaft Groove Fon Dio Dio No Width Stamped 62 Ser 60 80 w 42 52 amp A C gen 8 cyl 63 66 Ser 60 w P S 6 cyl exc 62 amp 130 amp J 64 ser 60 TDM 6 cyl N6 3 2 4 3815495 1 3 85 62 Ser 40 thru 60 w 62 amp A C gen exc DIESEL 63 66 Ser S0 W 62 amp 230 lst design N0 2 2 2 3815461 1 4 80 62 Ser 60 SBC w 261 W B w 62 amp A C gen 62 64 Ser 80 W 62 amp A C gen 63 66 Ser 50 60 w 62 amp A C gen lst design exc 230 No 3 2 Z 3815491 1 3 30 62 66 ALL 159 212 318 No 2 2 3816753 1 3 30 63 Ser 50 w ammeter oil pressure and temp gauge 292 exc LCF Air Cond 63 Ser 60 exc LCF TILT DIESEL SBC 327 Air Cond 63 Ser 60 SBC exc 327 243 W B 261 W B 63 Ser 60 SBC w 243 W B exc 327 348 ammeter oil pressure and temp gauge equip No 3 Z 2 A 3845437 3845437 1 12 95 63 65 ALL w A C gen 8 cyl exc 62 amp 130 amp 66 Ser 50 8 cyl exc 62 amp 66 Ser 80 exc DIESEL 62 amp No 3 A6 2 Z 3826284 1 4 95 63 66 Ser 50 230 250 exc 62 amp Air Cond No 2 2 3792460 1 4 95 65 66 Ser 50 60 w Air Cond 292 exc SBC D D TILT Air Equip No 3 4 3 Z 3 865793 1 9 75 65 ALL 351 478 ss TILT 212 Yes 3 M 2 24550850 1 6 95 65 ALL w 62 amp 351 478 No 22 2 Z 24577490 1 10 75 65 66 Ser 50 w P S 230 250 exc TILT SBC D D No 3 3 3865796 1 9 75 65 66 Ser 50 w Air Cond 230 250 exc 62 amp No 2 7 1 1958095 1 3 25 65 1 cF TDM w Acc Air cond Yes 2 1 3875968 1 2 83 66 Ser 50 w 62 amp A C gen 230 2nd design N0 3 Z 2 Z 3894010 3894010 1 7 95 66 Ser 50 60 w 62 amp A C gen exc 230 N0 3 74 2 3892960 3892960 1 6 25 66 ALL w 62 amp 351 478 exc TILT 66 TILT w 62 amp 478 exc H D Wiring 24632830 1 10 25 55 Ser 5 exc 40 amp 56 57 Ser 5 7 8 w 25 30 amp exc P S 56 57 Ser 8 9 10 w 30 amp 58 60 ALL w 30 amp 59 Ser 5 P S w A O H B 60 62 Ser 60 TILT exc P S 40 50 amp L C I A C gen 61 62 Ser 50 60 exc A C gen 35 amp D C gen FAN 12 blades 4 dia 1866400 1 88 ALL ALL w 6 separate fan FAN 12 blades 6 dia 1937276 1 3 20 58 64 ALL w 5 4 separate fan FAN 13 b1ades 5 4 dia 1940994 1 I 30 ALL ALL w 6 separate fan FAN 12 b1ades 6 dia 1910036 1 2 97 NOTE Large diameters give increased cooling but have higher noise level They are interchangeable with smaller dia fan provided there is clearance for the increased O D 59 61 ALL w 60 amp A C gen FAN 11 blades 1950231 1 4 00 64 65 Ser 50 thru 80 exc 62 amp 130 amp 351 478 66 ALL exc 351 478 D D SBC FAN 11 b1ades 5 dia 3843346 1 89 I 2 274 Chovrolot Motor Diwdizzg HDT 206 General Motors Corporotion REVISED MAY 1 1966