ENGINE SERIES NUMBER AND SUFFIX CHART Count Im Tm Description Designation Description Designation 327 8 CYLINDER 4 BARREL Manual Trans MK Pouerglide MM A I R ML Powerglide and A I R MN 350 8 CYLINDER Manual Trans MS Powerglide MU A I R MT Powerglide and A I R MV 396 8 CYLINDER High Performance EI Manual and A T Trans MW High Performance and 3 Speed Automatic Trans EQ A I R NIX High Performance and A I R EY 3 Speed Automatic Trans MY Special High Performance MO 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 Taxl CB Air Cond CN C A C CC Pcmerglide CQ H D Clutch CJ Powerglide and C A C CR H D Clutch and C A C CK Police C A C CS Taxi PoIice Powerglide CL Police Powerglide and C A C CT 307 8 CYLINDER i 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 Bbl Carb Reg Fuel Powerglide HK 4 Bbl Carb HI H D Clutch HL Powerglide HC 4 Bbl Carb Powerglide HJ 3 Speed Automatic Trans HF 4 Bbl Carb H D Clutch HL Powerglide HG 4 Bb Carb 3 Speed Automatic Trans HM Powerglide HH 4 Bbl Reg Fuel Powerglide HN 396 8 CYLINDER Manual Trans IA Police Manual Trans IK Powerglide IG Police Powerglide IN 3 Speed Automatic l ran5 IV Police H D ClUIC l 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 Pertormance ID CHEVELLE 230 6 CYLINDER Manual Trans BA C A C BD H D Clutch and C A C BB Pouerglide BF H D Clutch BC Powerglide and C A C BH 250 6 CYLINDER Manual Trans CM Powerglide C0 C A C CN Powerglide and C A C CR 307 8 CYLINDER Mgnual Trans DA ggxggugg DB H c ut h ZZZZZZQZQZZZZZQZZZZQZZZZZLZon 1 GM PARTS DIVISION GENERAL MOTORS C0RP0RAT 0N cHEvROL5T 11 i 41