ENGINE SERIES NUMBER AND SUFFIX CHART Cont Ivi YP Description Designation Description Designation 327 8 CYLINDER 4 BARREL Manual Trans MK Powerglide MM A l R ML Powerglide and A I R MN 350 8 CYLINDER Manual Trans MS Powerglide MU A l R MT Powerglide and A R MV 396 8 CYLINDER High Performance EI Manual and A T Trans MW High Performance and 3 Speed Automatic Trans EO A R NlX High Performance and A l R EY 3 Speed Automatic Trans MY Special High Performance MQ 3 Speed Automatic Trans and A l R MZ A l R Special High Performance MR CHEVROLET 250 6 CYLINDER Manual Trans CA Manual Trans CM Taxi CB Air Cond CN C A C CC Powerglide CO H D Clutch CJ Powerglide and C A C CR H D Clutch and C A C CK Police C A C CS Taxi Police Powerglide CL Police Powerglide and C A C CT 307 8 CYLINDER Powerglide DH 3 Speed Automatic Trans DS 3 Speed Automatic T H 400 DK H D Clutch DQ Manual Trans DO Powerglide DR 5 4 Speed Trans DP 327 8 CYLINDER Manual Trans HA Manual Trans HI H D Clutch HB 4 BbI Carb Reg Fuel Powerglide HK 4 Bbl Carb HI H D Clutch HL Powerglide HC 4 BbI Carb Powerglide HJ 3 Speed Automatic Trans HF 4 Bbl Carb H D Clutch I HL Powerglide HG 4 Bbl Carb 3 Speed Automatic Trans HM Powerglide HH 4 BbI Reg Fuel Powerglide HN 396 8 CYLINDER Manual Trans IA Police Manual Trans IK Powerglide IG Police Powerglide IN 3 Speed Automatic Trans IV Police H D Clutch IF 427 8 CYLINDER Police 3 Speed Automatic T H 400 IB 3 Speed Automatic Trans IJ IS Manual Trans IE IH Police Manual Trans IC Special High Performance ID CHEVELLE 230 6 CYLINDER Manual Trans BA C A C BD H D Clutch and C A C BB Powerglide BF H D Clutch BC Powerglide and C A C BH 250 6 CYLINDER Manual Trans CM Powerglide CQ C A C CN Powerglide and C A C CR 307 8 CYLINDER W Manual Trans DA 3 3 23 4 S dm DB H D Clutch 3 DN 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 3OA 34