on ENGINE SERIES NUMBER AND SUFFIX CHART 1956 Type Model Description Designation 31 32 36 3800 235 6 Cyl Thriftmaster Xi 31 32 36 3800 235 6 Cyl Thriftmaster with Hydramatic Transmission XGT 31 32 36 3800 4000 235 6 Cyl Thrittmaster with H D Clutch V 34 35 3700 235 6 Cyl Thriftmaster W 34 35 3700 235 6 Cyl Thriftmaster with Hydramatic Transmission WA 31 32 36 3800 265 8 Cyl Trademaster A 31 32 36 3800 265 8 Cyl Trademaster with Hydramatic Transmission B 31 32 36 3800 265 8 Cyl Trademaster with H D Clutch ll l 34 35 3700 265 8 Cyl Trademaster 0 34 35 3700 265 8 Cyl Trademaster with Hydramatic Transmission DA 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 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 Six cylinder and 8 cylinder are numberedl separately with each type engine numbered in sequence starting with 0001001 F will designate Flint engine l will designate Tonawanda engine EXAMPlE I The 50th 2100 Series regular production 235 6 cylinder engine built at Flint carries Serial No 0001050 F56Z if built at Tonawanda 0001050 1562 1957 31 32136 3800 235 6 Cyl Thriftmaster H 31 32 36 3800 4000 235 6 Cyl Thriftmaster with Hydramatic Transmission HD 31 32 36 3800 4000 235 6 Cyl Thrlftmaster with H D Clutch HE 34 35 3700 235 6 Cyl Thriftmaster J 34 35 3700 235 6 Cyl Thriftmaster with Hydramatic Transmission JA 31 32 36 3800 4000 265 8 Cyl Tradernaster L 31 32 36 3800 4000 265 8 Cyl Trademaster with Hydramatic LA 31 32 36 3800 4000 265 8 Cyl Trademaster with H D Clutch LB 34 35 3700 265 8 Cyl Tradernaster M 5000 283 8 Cyl Taskmaster with Powermatic NA 5000 283 8 Cyl Taskmaster with 4BC NC 5000 283 8 Cyl Taskmaster with Powermatic and 4BC ND 6000 261 6 Cyl Jobmaster K 6000 261 6 Cyl Jobmaster with Powermatic KC 6000 283 8 Cyl Taskmaster Q P 6000 283 8 Cyl Taskmaster with Powermatic PA 6000 283 8 Cyl Taskmaster with 4BC PC 6000 283 8 Cyl Taskmaster with Powermatic and 4BC PD 7000 283 8 Cyl Taskmaster R 7000 283 8 Cyl Taskmaster with Powermatic RA 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake RD 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake and Powermatic RE 7000 283 8 Cyl Taskmaster with 4BC RF 7000 283 8 Cyl Taskmaster with Powermatic and 4BC RG 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake Powermatic and 4BC RH 7000 283 8 Cyl Taskmaster with Air Hydraulic Brake and 4BC RJ 8000 283 8 Cyl Taskmaster S 8000 283 8 Cyl Taskmaster with Powermatic SC 8000 283 8 Cyl Taskmaster with Air Hydraulic Brake SD 8000 283 8 Cyl Taskmaster with Air Hydraulic Brake and Powermatic SE 8000 283 8 Cyl Taskmaster with 4BC SF 8000 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 L 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 31 17