ENGINE SERIES NUMBER AND SUFFIX CHART y t A F I 956 4 Model A Description D si tion 31 32 36 3800 235 6 Cyl Thriftmaster X 31 32 36 3800 235 6 Cyl Thriftmaster with Hydramatic Transmission Q XG 31 32 36 38w 40 DZ 235 6 Cyl Thriftmaster with H D Clutch t V M 34 35 3700 235 6 Cyl Thriftmaster I V 3 W 34 35 3700 235 6 Cyl Thriftmaster with Hydramatic Transmission WA 31 32 36 3800 265 8 Cyl Trademaster Ai 31 32 36 3800 265 8 Cyl Trademaster with Hydramatic Transmission B 31 32 36 3800 265 8 Cyl Trademaster with H D Clutch 7 A M 34 35 3700 265 8 Cyl Trademaster D 34 35 3700 265 f 8 Cyl Trademaster with Hydramatic Transmission Q DA i 34 35 3700 265 8 Cyl Trademaster with H D Clutch DB A stamped following suffix when this engine is used in 3600 Series and B when used in 3800 Series A A stamped following suffix when this engine is used in 3600 Series and B if used in 3800 Series and C if used in 3100 and 3200 Series 4 Six cylinder and 8 cylinder Aare numbered separately with each type engine numbered in sequence starting with 0001001 F will designate Flint engine T will designate Tonawanda engine A R l 4 EXIMPIE I V The 50th 21w Series regular production 235 6 cylinder engine built at Flint carries Serial No 0lX 1050 F56Z if built at Tonawanda 0001050 T56Z A 1957 I 31 32136 3800 235 6 Cyl Thriftmaster H 31 32 36 3800 4010 235 6 Cyl Thriftmaster with Hydramatic Transmission HD 31 32 36 3800 4000 235 6 Cyl Thriftmaster with H D Clutch 3 HE 34 35 3700 235 6 Cyl Thriftmaster J I 34 35 3700 235 6 Cyl Thriftmaster with Hydramatic Transmission I JA 31 32 36 3800 4000 265 8 Cyl Trademaster L 31 32 36 3800 4000 265 8 Cyl Trademaster with Hydramatic L LA 31 32 36 3800 4000 265 8 Cyl Trademaster with H D Clutch LB 34 35 37tX 265 8 Cyl Trademaster M sooo 283 8 Cyl Taskmaster with Powermatic l NA 5000 283 8 Cyl Taskmaster with 4BC NC 5000 283 8 Cyl Taskmaster with Powermatic and 4BC ND A 6000 261 6 Cyl Jobmaster A l A K 6000 261 6 Cyl Jobmaster with Powermatic A A A KC 6000 A 283 8 Cyl Taskmaster P 6000 283 8 Cyl Taskmaster with Powermatic PA A 6000 4 283 8 Cyl Taskmaster with 4BC i PC 6000 283 8 Cyl Taskmaster with Powermatic and 4BC P D A 7000 283 8 Cyl Taskmaster R 7000 283 8 Cyl Taskmaster with Powermatic RA 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake l R D 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake and Powermatic RE A 7000 283 8 Cyl Taskmaster with 4BC RF L 7000 283 8 Cyl Taskmaster with Powermatic and 4BC R 0 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake Powermatic and 4BC RH 70lX 283 8 Cyl Taskmaster with Air Hydraulic Brake and 4BC RJ 8000 283 8 Cyl Taskmaster t I S A 8000 283 8 Cyl Taskmaster with Powermatic f SC I 8w0 283 8 Cyl Taskmaster with Air Hydraulic Brake SD 8000 283 8 Cyl Taskmaster with Air Hydraulic Brake and Powermatic SE 8lDO 283 8 Cyl Taskmaster with 4BC S F A 8010 283 8 Cyl Taskmaster with Powermatic and 4BC SG 8000 283 8 Cyl Taskmaster with Air Hydraulic Brake and 4BC SH 8000 283 8 Cyl Taskmaster with Air Hydraulic Brake Powermatic and 4BC SJ GM PARTS DIVISION GENERAL MOTORS CORPORA T lON CHEVROLET2 72TL 24 V