ENGINE SERIES NUMBER AND SUFFIX TYPE MODEL DESCRIPTION DESIGNATION 11 15 1700 235 6 cylinder with 3 Speed Transmission A 11 15 1700 235 6 cylinder with H D Clutch AE 11 15 1700 235 6 cylinder with C A C AF 11 15 1700 235 6 cylinder with C A C and H D Clutch AG 11 15 1700 235 6 cylinder with Power Steering C A C and H D Clutch AJ 11 15 1700 235 6 cylinder with Power Steering AK 11 15 1700 235 6 cylinder with Power Steering and H D Clutch AM 1300 235 6 cylinder with 3 Speed Transmission AP 1300 235 6 cylinder with H D Clutch AR 1300 235 6 cylinder with Power Steering AS 1300 235 6 cylinder with Power Steering and H D Clutch AT 11 15 1700 235 6 cylinder with Power Steering and C A C AZ 11 13 15 1700 235 6 cylinder with Powerglide B 11 13 15 1700 235 6 cylinder with Powerglide and Power Steering BE 11 13 15 1700 235 6 cylinder with Powerglide and C A C BG 11 15 1700 235 6 cylinder with Powerglide Power Steering and C A C BH 12 14 16 1800 283 8 cylinder C 12 14 16 1800 283 B cylinder with Overdrive CD 12 14 16 1800 283 8 cylinder with 4BC CF 12 14 16 1800 283 8 cylinder with Overdrive and 4BC CG 12 14 16 1800 283 8 cylinder w C A C CL 12 14 16 1800 283 8 cylinder w C A C and 48C CM 12 14 16 1800 283 8 cylinder with Powerglide D 12 14 16 1800 283 8 cylinder with Powerglide and 4BC DB 12 14 16 1800 283 8 cylinder with Powerglide and C A C DK 12 14 16 1800 283 8 cylinder with Powerglide C A C and 4BC DM 12 14 16 1800 283 8 cylinder with Turboglide E 12 14 16 1800 283 8 cylinder with Turboglide and 4BC EB 12 14 16 1800 283 8 cylinder with Turboglide and C A C EG 12 14 16 1800 283 8 cylinder with Turboglide C A C and 4BC EJ 12 14 16 1800 348 8 cylinder F 12 14 16 1800 348 8 cylinder with 3 2BC FA 12 14 16 1800 348 8 cylinder with 3 2BC and High Performance FE 12 14 16 1800 348 8 cylinder with High Performance I FG 12 14 16 1800 348 8 cylinder w 3 2BC and Spec High Performance FH 12 14 16 1800 348 8 cylinder w Spec High Performance FJ 12 14 16 1800 348 8 cylinder with Turboglide H 12 14 16 1800 348 8 cylinder with Tuiboglide and 3 2BC HA CORVETTE 283 8 cylinder CQ CORVETTE 283 8 cylinder with Fuel Injection CR CORVETTE 283 8 cylinder with Fuel Injection and Hi Lift Cam CS CORVETTE 283 8 cylinder with Dual 4BC CT CORVETTE 283 8 cylinder with Dual 4BC an i d Hi Lift Cam CU CORVETTE 283 8 cylinder with Powerglide DG CORVETTE 283 8 cylinder with Powerglide and Dual 4BC DJ C10 20 30 Thriftmaster 235 I J CIO 20 Thriftmaster 235 with Powerglide JB C 1000104051000 Thriftmaster 235 with H D Clutch ic P20 30 Thriftmaster Special 235 K P20 30 Thriftmaster Special 235 with Hydramatic KA C 1000104051010 Trademaster 283 M C10 20 Trademaster 283 with Powerglide MA Note CORVETTE engines have me 40 six digits of the vehicle serial number stamped on engine date boss Engines are stamped with a source production date and type serial pad EXAMPLE T0101A T 01 01 A Tonawanda Month Day Standard 6 cyl 235 Plant January First Models 11 15 1700