1979 CHEVROLET ENGINE IDENTIFICATION I A SERIES ASSEMBLY CODES I 200 CID L26 OPT 23IA CID LD5 OPT 305H CID LG4 OPT DHA RA RM DNS DNW DTA DHB RE DNT DNX DTB DNU DNV I 267 CID L39 OPT 350L CID LM OPT DMA DMD DRX DMB DMF DMC DMH B SERIES ASSEMBLY CODES 250 CID L22 OFT 305G CID LG3 OPT 350L CID LMI OPT I DKB DCE DNL DTC DRA DFIK DUE DKC DCC DNM DTD DRE DRL DUC I DKD DCD DNR DRH DRY DUD DCA DRJ DRZ F SERIES ASSEMBLY CODES I 250 CID L22 OPT 305G CID LG3 OPT 350L CID LMI OPT DKA DNF DNZ DRC DRH DRY DKB DNH DTM DRD DRL I DKD DNK DTR DRF DRW H SERIES ASSEMBLY CODES I I5I I CID LS6 OPT I5I S CID LSB OFT 15IV CID LXB OPT AC ZR XJ I AD ZF AM I AD WD XK ZA ZR ZP WJ AB ZB AF I96 CID LC9 OFT 23IA CID LDS OPT 305G CID LG4 OPT I FC NA NC DNA DNC DTK I FD NB NF DNB DND DTL I X SERIES ASSEMBLY COD E 23IA CID LDS OPT 250 CID L22 OPT 305G CID LG4 OPT RX NG DKA DKD DNF DNK RY RF DKB DN I DNZ I I 350L CID LMI OPT DRJ DRY I T SERIES ASSEMBLY CODES I 6E CID LI7 OPT I 1 60 CID IB OPT DBA DBK I DEU DSB DBB DEL DEW I DEC DBM DEX I DBD DBR DEV I DEF DBS DBZ DEH DET DSA I DBJ I I L I I I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 10 I 0 I I A