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The easiest way to decode C3 Corvette VIN and other codes.

Trim tag

Trim tag
1981 late-1982

partial VIN
Block casting
part number
RPO codes
Exterior colors
Interior colors
/ types

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Corvette C3 VIN & other Code locations and information

VIN   Trim tag   Engine    Quadrajet

Corvette C3 VIN

VIN (vehicle identification number) number is stamped on a plate riveted to the bottom front face of the driver's windshield pillar and it is visible only through the glass.

Corvette C3 VIN location

The VIN number consists of the Division code (Chevrolet), car series (Corvette), body style (coupe/convertible), engine, assembly plant (St. Louis/Bowling Green), and serial number (sequence). During the Chevrolet Corvette C3 generation, there were three different forms of VIN.

  1. 1968, 1968, 1970, 1971: 194379S100001 (13 characters)

  2. 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980: IZ37K2S500001 (13 characters)

  3. 1981, 1982: 1G1AY8764BS400001 (17 characters)

VIN info for 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981 and 1982

The Corvette C3 VIN Decoder solves these codes automatically.

Corvette 1968 VINCorvette 1969 VINCorvette 1970 VINCorvette 1971 VINCorvette 1972 VINCorvette 1973 VINCorvette 1974 VINCorvette 1975 VINCorvette 1976 VINCorvette 1977 VINCorvette 1978 VINCorvette 1979 VINCorvette 1980 VINCorvette 1981 VINCorvette 1982 VIN

1968 Corvette VIN decoder

1968 Corvette VIN

Corvette 1968 VIN: 194378S400001 – 194378S428566


28,566 cars built in 1968

coupe 9,936, covertible 18,630

1969 Corvette VIN decoder

1969 Corvette VIN

Corvette 1969 VIN: 194379S700001 – 194379S738762


38,762 cars built in 1969

coupe 22,129, covertible 16,633

1970 Corvette VIN decoder

1970 Corvette VIN

Corvette 1970 VIN: 194370S400001 – 194370S417316


17,316 cars built in 1970

coupe 10,668, covertible 6,648

1971 Corvette VIN decoder

1971 Corvette VIN

Corvette 1971 VIN: 194371S100001 – 194371S12180


21,801 cars built in 1971

coupe 14,680, covertible 7,121

1972 Corvette VIN decoder

1972 Corvette VIN

Corvette 1972 VIN: 1Z37K2S500001 – 1Z37K2S527004


27,004 cars built in 1972

coupe 20,496, covertible 6,508

1973 Corvette VIN decoder

1973 Corvette VIN

Corvette 1973 VIN: 1Z37J3S400001 – 1Z37J3S434464


30,464 cars built in 1973

coupe 25,521, covertible 4,943

1974 Corvette VIN decoder

1974 Corvette VIN

Corvette 1974 VIN: 1Z37J4S400001 – 1Z37J4S437502


37,502 cars built in 1974

coupe 32,028, covertible 5,474

1975 Corvette VIN decoder

1975 Corvette VIN

Corvette 1975 VIN: 1Z37J5S400001 – 1Z37J5S438465


38,465 cars built in 1975

coupe 32,028, covertible 5,474

1976 Corvette VIN decoder

1976 Corvette VIN

Corvette 1976 VIN: 1Z37L6S400001 – 1Z37L6S446558


46,558 cars built in 1976

coupe 46,558

1977 Corvette VIN decoder

1977 Corvette VIN

Corvette 1977 VIN: 1Z37L7S400001 – 1Z37L7S449213


49,213 cars built in 1977

coupe 49,213

1978 Corvette VIN decoder

1978 Corvette VIN

Corvette 1978 VIN: 1Z87L8S400001 – 1Z87L8S440274, 1Z87L8S900001 – 1Z87L8S906502 (Corvette Pace Car)


46,777 cars built in 1978

coupe 40,275, pace car 6,502

1979 Corvette VIN decoder

1979 Corvette VIN

Corvette 1979 VIN: 1Z8789S400001 – 1Z8789S453807


53,807 cars built in 1979

coupe 53,807

1980 Corvette VIN decoder

1980 Corvette VIN

Corvette 1980 VIN: 1Z878AS400001 – 1Z878AS440614


40,614 cars built in 1980

coupe 40,614

1981 Corvette VIN decoder

1981 Corvette VIN

Corvette 1981 VIN: 1G1AY8764BS400001 – 1G1AY8764BS431611 (St. Louis), 1G1AY8764B5100001 – 1G1AY8764B5108995 (Bowling Green)


40,606 cars built in 1981

coupe 40,606

1982 Corvette VIN decoder

1982 Corvette VIN

Corvette 1982 VIN: 1G1AY8786C5100001 – 1G1AY8786C5125408


25,407 cars built in 1982

coupe 25,407

Chevrolet made a total of 542,862 C3 Corvettes.

The model year was three to four months in advance of the calendar year, so the year of manufacture of the body may be earlier than the model year.

Corvette C3 VIN Decoder automatically detects the format of the VIN and calculates the body built date from the sequence number.

Trim tag

a trim tag or trim plate is a steel plate located directly above the driver's upper door hinge.

Trim tag location

The trim tag consists of a body build date, trim code, and external color code. The body build date is the date when the partially assembled and painted body got the trim tag. The car's final assembly date is typically several days after the body build date.

The C3 Corvettes used two trim tags, the cars built at the St. Louis plant (1968-1981) there is written "Chevrolet" at the top, and card built at the Bowl Green plant (late 1981 - 1982) starts with the letter B or C, depending on the year of manufacture.

Trim tag 1968 - 1981 early
Trimtag 1981 late - 1982

Because the 1968 - early 1981 trim tag does not have a year mark, it must be entered when decoding.

Engine code, partial VIN, block casting code

Engine code (assembly date and suffix code) and partial VIN code is stamped into a pad at the front passenger side of the engine near the water pump mount area.

The engine block casting number is located on the flange that mates to the transmission bell housing.

All Chevrolet C3 Corvettes engines were marked with an engine code at the engine assembly plant, which indicated location, date, and limited engine specifications (engine code suffix).

When the engine arrived at the body assembly plant, it was stamped with a partial VIN code consisting of divisonal code, assembly plant code, and the VIN sequential number.

Engine suffix codes may be reused over time, so you must also check the partial VIN code.

The block casting number identifies the years in which the block was in use and the cubic inches.

Corvette C3 Decoder also recognizes engine and block codes other than those used in the Corvettes.

engine cast code location

Quadrajet part number

The Quadrajet is a four-barrel carburetor, made by the Rochester Division of General Motors. It was used in all C3 Corvettes except in 1981 when crossfire injection replaced carburetors. Alongside the Quadrajet, Holley carburetors were also in use from 1968 to 1972.

Quadrajet identification information is stamped into the main body on the driver's side.

quadrajet part number location

The part number shows the year of manufacture, type of carb, division, and is it a manual/automatic transmission model.

Corvette C3 Decoder Quadrajet part number decoder recognizes carburetors used originally in the Chevrolet Corvettes.

© 2022 - All Rights Reserved.
Last Updated 11/24/2022

The idea behind the Chevrolet Corvette VIN decoder was that I needed a quick and easy way to check the information on cars for sale. When I got the first version ready, I decided to release it to the delight of others as well. If you find any errors on the page or come up with something useful to add here, please leave feedback:

decoder feedback email


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© 2022 - All Rights Reserved.

Last Updated 11/20/2022

Version history of Chevrolet Corvette C3 Decoder

28 July 2022New site construction
28 July 2022New webhost
28 July 2022Engine codes
19 July 2022C3 birthday calculator
12 July 2022Minor tweaks
22 Apr 2022RPO codes
28 Mar 2022Color samples
25 Mar 2022Added tooltips
18 Mar 2022Tweaks for desktop devices
13 Mar 2022New domain and minor tweaks for mobile devices
5 Mar 2022UI improvements and added information about codes
1 Mar 2022Mobile usage improvement
25 Feb 2022Added info about code locations
20 Feb 2022New UI
14 Feb 2022Codes for Bowling Green built cars
10 Feb 2022Codes for St.Louis built car
6 Feb 2022Paint codes
4 Feb 2022Added tooltip for VIN
30 Jan 2022First release of Corvette VIN decoder
Term Description
Corvette VIN See Main page for vehicle identification numbers differences from different years.
Model year A version of the car - which may have been manufactured in the previous year.
Assembly plant A factory where Corvettes are put together, parts came from other factories, (St. Louis or Bowling green)
Body style The Corvette C3 was made as a coupe and convertible.
General Motors American automotive manufacturing corporation.
Chevrolet A division of General Motors Company.
RPO Regular Production Option.