CORVETTE ENGINE SERIES NUMBER AND SUFFIX CHART Cont 1965 396 8 CYLINDER l Tv Tvvv Description Detlmetion Dercrlptlcn Designation Spec Hlgn Performance IF Note Engines are stamped with a source prcductlcn dere and type on serlel ped 1966 l 327 8 CYLINDER ManuaITrans 4 HE Puwergllde HO A I R i HH Special Hiya Performance HT A l R and Powerglide 4 HFI Pc werSteering HP Special Hlgh Performance end A I R HD Special Hlgh Performance CA C and A R KH 4Z7 8 CYLINDER Special High Performance Hyd Liftere 4 IK Special Hlgh Performance IP High Performance 4 IL Pcwerglide 4 ICI A I Fl IM Pcwergllde and A I R 4 IR Type Designetlcos for acme englnes will befollcwed by an R Rochester or H Holly Certerl to deslgnate Carburetor requlraments 1967 327 8 CYLINDER Manuel Trans HE Powerglide HO A I R t A 4 HH SpecIeIvH h Perfonnance 4 HT A I R end Pcwergllde HR Puwer Steering Special Hlqh Perfomtance and C A C HP Special High Performance and A l R HD Special High Performance C4A Q and A 4R l H 427 8 CYLINDER 4 Speed or Pcwerglide 4 IL A I R and Aluminum Heeds JH Trl Carb JC Pwwerqlide 4 IO Special Hlgh Performance ond Tri Carb JE Pcwerglide and Tri Carb JD Heavy Duty 4 4 4 IT A I R end Powergllde IR Aluminum I leads IU A I R Pcwergllde and Trl Carb 4 JG A4I R IM A l4R Special Hlqh Performance and A R and Trl Carb JF Trl Carb JA 1933 I V r 327i 8 CYLllllDER l l 4 Manual Trans 4 HE Hyd SteerIng and C A C l l HP 3Speed Automatic Trans HO Special Hlgh Performance HT GM PARTS DIVISION GENERAL MOTORS CORFORAT ON CHEVROLET II 12