CORVETTE ENGINE SERIES NUMBER AND SUFFIX CHART Cont V11 1976 1977 350 CID 350 CID CLM CHC CKZ CLD CLR CHR CLA CLF CLS CKC CLB CKW CLC CKX CHD CLS CKD 1978 35OL CID L48 OPT 350H CID L82 OI IN L VIN H Calif CLR M T CMR Alt CLS A T CMS A T w Fed CUT M T CHW CLM 1979 350 8 CID L48 OPT 350 4 CID L82 OQ V N 8 VIN 4 M T ZAA M T ZBA A T w Fed ZAB A T ZBB Calif ZAC Alt ZAD 1980 1981 305 H LG4 A T ZCA 350 6 L8I M T Fed ZDA 350 8 L48 M T ZAM 350 6 L8I A T Calif ZDB 350 8 L48 A T ZAK 350 6 L81 M T Calif ZDC 350 6 L82 M T ZBD 350 6 L81 A T Fed ZDD 350 6 L82 A T ZBC 1978 TRANSMISSION IDENTIFICATION CODES M20 4 SPD MAN IVI21 4 SPD MAN ZU S6 ZW M38 3 SPD AT 5WB 5TL 9 TRANSMISSION IDENUFICATION CODES M20 4 SPD MAN M21 4SPD MAN UH UK Warner WARNER M38 3 SPD A T TB WB WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION CHEVROLET 14 15