ENGINE SERIES NUMBER AND SUFFIX CHART Cont CHEVROLET 230 6 CYLINDER Tviw Tyne Description Designation Description Designation 3 Speed Trans A 3 Speed Trans H D Clutch and C A C AG 3 Speed Trans and H D Clutch AE Powerglide B 3 Speed Trans and Air Cond AF Powerglide and Air Cond BQ 283 8 CYLINDER Manual Trans C Powerglide D Police CB 327 8 CYLINDER Manual Trans R Powerglide and High Performance SB Manual Trans and High Performance RB Service only with universal type XE Powerglide S 409 8 CYLINDER Manual Trans 4BC OA Manual Trans High Performance and Transistor Ignition QN Manual Trans Dual ABC QB Manual Trans High Performance Dual 4BC and Manual Trans QC Transistor Ignition QP Powerglide OG Powerglide and Transistor Ignition OR Manual Trans and Transistor Ignition OO 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 30 I4