CORVETTE ENGINE SERIES NUIVIBER AND SUFFIX CHART 1956 265 8 CYLINDER Type Tvpe Description Designation Description Designation 3 Speed GR Powerglide FG 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 T562 1957 3 Speed Transmission and 4BC EF Powerglide FH Dual 4BC EH 3 Speed Transmission and Fuel Injection EM Dual 4BC and Hi Lift Cam EG 3Speed Transmission Fuel Injection and Hi Lift Cam EL Powerglide and Dual 4BC FG Powerglide and Fuel Injection FK Note The continuous engine serial number has been eliminated The engine plants now stamp a source production date and type on serial pad Note Numbered in sequence commencing with 1001 EXAMPLE T101A IT I1 01 A Tonawanda Month Day Standard 6 cyl 235 Plant January First Models 15 21 2400 1958 283 8 CYLINDER 3Speed Transmission CO 3Speed Transmission Dual 4BC and HI Lift Cam CU 3 Speed Transmission and Fuel Injection CR Powerglide DG 3Speed Transmission Fuel Injection and Hi Lift Cam CS Powerglide and Fuel Injection DH 3 Speed Transmission and Dual 4BC CT Powerglide and Dual 4BC DJ Note The continuous engine serial number has been eliminated Engines are now stamped with a source production date and type on serial pad 1959 283 8 CYLINDER 3 Speed Transmission CQ 3 Speed Dual 4BC and Hi Lift Cam CU 3Speed and Fuel Injection CR Powerglide DG 3 Speed Fuel Injection and Hi Lift Cam CS Powerglide and Fuel Injection DH 3Speed and Dual 4BC CT Powerglide and Dual 4BC DJ Note The continuous engine serial number has been eliminated The engine plants now stamp a source production date and type on serial pad 1960 283 8 CYLINDER Manual Trans CQ Dual 4BC and HI Lift Cam CU Fuel Injection CR Powerglide DG Fuel Injection and HI Lift Cam CS Powerglide and Dual 4BC DJ Dual 4BC CT 1974 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET P A 3OB K