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Below, you can find Vehicle Identification Number, casting dates, casting numbers, and other information for identifying the 1980 Corvette.

VIN Tag Information
1Z878AS400001 - 1Z878AS440614
Digit Definition
1st 1 = Chevrolet Division
2nd Series:  Z = Corvette
3rd/4th Body Style:  87 = 2-door sport coupe
5th Engine:  H = LG4/305ci/180hp, 8 = L48/350ci/190hp, 6 = L82/350ci/230hp
6th Model Year:  A = 1980
7th Assembly Plant:  S = St. Louis, MO
Last 6 digits Production Number starting with 400001 - 440614

Engine Suffix ID Numbers
ZAK: 350ci, 190hp (automatic transmission)
ZAM: 350ci, 190hp (manual transmission)
ZBC: 350ci, 230hp (automatic transmission)
ZBD: 350ci, 230hp (uncertain usage)
ZCA: 305ci, 180hp (automatic transmission, California Emissions)

Block ID Numbers
14010207: 350ci, 190hp, 230hp, (late production)
3970010: 350ci, 190hp, 230hp
4715111: 305ci, 180hp

Head ID Numbers
462624: 350ci, 190hp, 230hp
14014416: 305ci, 180hp

Cylinder Head Casting Number:

The cylinder head casting number is usually found on top of the cylinder head in between two valves and the rocker arm studs.

Cylinder Head Casting Date:

The cylinder head casting date is usually found adjacent to the cylinder head casting number. The casting date code is an alphanumeric sequenced number. The first digit is usually a letter which specifies the month that the block was cast. Some casting dates have been found with all digits being numbers, the first of which corresponds to the month.

Cylinder Head Casting Number Month Codes (1st Digit)
A - January E - May I - September
B - February F - June J - October
C - March G - July K - November
D - April H - August L - December

Two main plants were casting Chevrolet engine parts during 1972: Flint, Michigan and Tonawanda, New York.

Example:  Flint Cylinder Head Casting Number - D 19 9

  • D:  Month = April
  • 19:  Casting Day = 19th
  • 9:  Casting Year = 1959

Example:  Tonawanda Cylinder Head Casting Number - D 19 59

  • D:  Month = April
  • 19:  Casting Day = 19th
  • 59:  Casting Year = 1959
Alternator ID Numbers
1101041, 1101075, 1101085, 1101088, 1103122

Carburetor ID Numbers
Rochester Q-Jet #17080204: 350ci, 190hp (automatic transmission)
Rochester Q-Jet #17080207: 350ci, 190hp (manual transmission)
Rochester Q-Jet #17080228: 305ci, 230hp (automatic transmission)
Rochester Q-Jet #17080504, 17080517: 305ci, 180hp (automatic transmission, California emissions)

Distributor ID Numbers
1103287: 350ci, 190hp (manual transmission)
1103352: 350ci, 190hp
1103353: 350ci, 190hp (automatic transmission)
1103368: 305ci, 180hp (automatic transmission, California emissions)
1103435: 350ci, 230hp (automatic transmission)