1976 78 PASSENGER ENGINE STAMPING INFORMATION THE ENGINE PLANTS WILL STAMP A SOURCE PRODUCTION DATE AND TYPE DESIGNATION ON THE ENGINES AS SHOWN BELOW 4 CYLINDER 140 CID STAMPED DPPQSITEITHE NUMBER THREE CYLINDER ON THE RIGHT SIDE OF THE CASE ON THE LEFT SIDE OF THE PAD AS CLOSE TO THE REAR OF PAD AS POSSIBLE ALL 6 CYLINDER STAMPED ON CRANKCASE ON RIGHT HAND SIDE OF ENGINE TO REAR OF DISTRIBUTION NOTE 1978 6 CYLINDER STAMPED ON RIGHT OR LEFT HAND REAR EDGE OF CYLINDER CASE ALL B CYLINDER EXCEPT MARKIV STAMPED ON TOPFRIONTIGF RIGHT HAND BANK OF CYLINDER AND CASE AS CLOSE AS POSSIBLE TO UPPER END OF PAD ALL MARK IV STAMPED ON TOP OF RIGHT HAND BANK OF CYLINDER AND CASE AS CLOSE AS POSSIBLE TO LOWER END DF PAD F WILL DESIGNATE FLINT MOTOR I FLINT ENGINE T TONAWANDA S SAGINAW PARTS K GM OF CANADA LTD M GM DF MEXICO AND H HYDRAMATIC THE FOUR DIGIT NUMBER FOLLOWING THEISOURCE DESIGNATIDN WILL INDICATE THE CALENDAR MONTH AND DAY PRODUCED OF THE FOUR DIGITS THE IIAST WILL ALWAYS INDICATE fI HE DAV VIZ DIFFOR THE FIRST DAY OF THE MONTH DZ FOR THE SECOND DAV ETC TWO DIGITS PRECEDINGTTHE DIATE PRODUCED WILL INDICATE THE MONTH VIZ 01 FOR JANUARY 02 FOR FEBRUARY AND I2 FOR DECEMBER EXAMPLE JANUARY IST WOULD READ 0101 I I I A STANDARD IHAOO SERIES TYPE IF BUILT AT TONAWANDA ON JANUARY IST WOUIJD BE STAII IPED TOIOICLW THE FIRST CHARACTER OF THE TYPE DESIGNATIDN WILL ALWAYS BE C OR Z FOR PASSENGER AND T OR A Fon muck b NOTE THE ENGINE PLANTS ARE TO STAMP THE SERIAL PAD OF ALL CURRENT MODEL SERVICE ENGINES WITH TI IE SOURCE PRODUCTION DATE THE SAME TYPE DESIGNATION AS STAMPED ON THE COMPARABLE PRODUCTION ENGINE JI I ON IRRIGATION ENGINES A FOUR DIGIT SEOUENTIAL SERIAL NUMBER BEGINNING WITIIIQIIQOI FOR EACH ENGINE WILL BE STAMPED ADLIACENT TO THE ENGINE DATE STAMP AND WILL INDENTIFY EACH IRRIGATION ENGINE BUILT I gy PARTS DII lS ON GENERAL MOTORS CORPORATION CHEVROIfET IO 16