I I C8 I I A I I I I I 1976 81 PASSENGER I ENGINE STAMPING INFORMATION 1 L I THE ENGINE PLANTS WILL STAMP A SOURCE PRODUCTION DATE AND TYPE DESIGNATION ON THE ENGINES AS I I SHOWN BELOW I 4 CYLINDER 140 CID STAMPED OPPOSITE THE NUMBER THREE CYLINDER ON THE RIGHT SIDE OF TI IE CASE ON I I THE LEFT SIDE OF THE PAD AS CLOSE TO TI IE REAR OF PAD AS POSSIBLE I ALL 6 CYL NDER STAMPED ON CRANKCASE ON RIGHT HAND SIDE OF ENGINE TO REAR OF DISTRIBUTION I NOTE 1978 6 CYLINDER STAMPED ON RIGHT OR LEF HAND REAR EDGE OF CYLINDER CASE I ALL B CYL NDER EXCEPT MARK IV STAMPED ON TOP FRONT OF RIGHT HAND BANK OF CYLINDER AND CASE AS I CLOSE AS POSSIBLE TO UPPER END OF PAD I ALL MARK IV STAMPED ON TOP OF RIGHT HAND BANK OF CYLINDER AND CASE AS CLOSE AS POSSIBLE TO I LOWER END OF PAD I F WILL DESIGNATE FLINT MOTOR V FLINT ENGINE T TONAWANDA S SAGINAW PARTS K GM OF I CANADA LTD M GM OF MEXICO AND H HYDRAMATIC I I THE FOUR DIGIT NUMBER FOLLOWING THE SOURCE DESIGNA 0N WILL INDICATE THE CALENDAR MONTH AND DAY I 7 PRODUCED OF THE FOUR DIGITS THE LAST TWO WILL ALWAYS INDICATE THE DAY VIZ 01 FOR THE FIRST DAY OF I I THE MONTH 02 FOR THE SECOND DAY ETC THE IWO DIGITS PRECEDING THE DATE PRODUCED WILL INDICATE THE MONTH VIZ 01 FOR JANUARY 02 FOR FEBRUARY AND 12 FOR DECEMBER I EXAMPLE JANUARY IST WOULD READ 0I01 I I A STANDARD IHA00 SERIES TYPE IF BUILT AT TONAWANDA ON JANUARY IST WOULD BE STAMPED TOIOICLW I I THE FIRST CHARACTER OF THE TYPE DESIGNATION WILL ALWAYS BE C OR Z FOR PASSENGER AND T OR A Fon TRucI I I I NOTE THE ENGINE PLANTS ARE TO STAMP THE SERIAL PAD OF ALL CURRENT MODEL SERVICE ENGINES WITH THE I I SOURCE PRODUCTION DATE AND THE SAME TYPE DESIGNATION AS STAMPED ON THE COMPARABLE PRODUCTION I ENGINE I ON IRRIGATION ENGINES A FOUR DIGIT SEOUENTIAL SERIAL NUMBER BEGINNING WITH 1001 FOR EACH ENGINE I I WILL BE STAMPED ADJACENT TO THE ENGINE DATE STAMP AND WILL INDENTIFY EACH IRRIGATION ENGINE BUILT I I I I I I I I I I I GM PARTS DIVISION GENERAL MOTORS CORPORAT 0N CHEVROLET I0 21