1974 Corvette VIN Decoder & Specs
Unlock the secrets of your classic 1974 Corvette with our detailed VIN and trim tag decoder. Verify your car's originality and production history. The trim tag analysis will reveal the factory-applied interior and exterior colors, plus the exact build date, essential for accurate restoration. Decoders for other components can be found here.
In 1974, a total of 37,502 Corvettes were manufactured, comprising 32,028 Coupes and 5,474 Convertibles.
Table of Contents
How to Decode Your 1974 Corvette VIN – Full Breakdown & Guide
Uncover the detailed specifications of your 1974 Corvette with our VIN and trim tag decoder. Input your VIN to learn about the engine, body, and transmission options. This tool helps confirm your car's authenticity and production details. The trim tag analysis provides original color codes and build date, crucial for historical preservation.
| VIN |
|
|---|---|
| Trim tag 1968–1981 |
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Having trouble with the VIN decoder? Whether it's an unusual code, missing data, or you need help verifying a numbers-matching car, contact. Happy to help.
| Position | Description | Possible Values |
|---|---|---|
| 1 | Make | 1 = Chevrolet |
| 2 | Series | Z = Corvette |
| 3–4 | Body Style | 37 = Coupe 67 = Convertible |
| 5 | Engine | J = L48 T = L82 Z = LS4 |
| 6 | Model Year | 4 = 1974 |
| 7 | Assembly Plant | S = St. Louis |
| 8–13 | Unit Number | 400001 – 437502 |
All specifications and VIN decoding details on this page are sourced from the official 1974 Chevrolet Corvette Vehicle Information Kit (PDF) published by General Motors.
1974 Corvette Specifications
Verify the factory colors of your 1974 Corvette using this guide. Below is a comprehensive list of available exterior and interior colors, complete with color codes and visual examples.
Exterior Colors
| Code | Color sample | Quantity |
|---|---|---|
| 910 | Classic White | n/a |
| 914 | Silver | n/a |
| 917 | Corvette Gray | n/a |
| 922 | Corvette Medium Blue | n/a |
| 948 | Corvette Dark Green | n/a |
| 956 | Bright Yellow | n/a |
| 968 | Dark Brown | n/a |
| 974 | Medium Red | n/a |
| 976 | Mille Miglia Red | n/a |
| 980 | Corvette Orange | n/a |
Interior Colors
The 1974 Corvette offered buyers a choice of either leather or vinyl interior upholstery. Color options varied slightly depending on the chosen material.
| Code | Color |
|---|---|
| 400 | Black Vinyl |
| 404 | Black Leather |
| 425 | Dark Red Vinyl |
| 413 | Dark Blue Vinyl |
| 415 | Medium Saddle Vinyl |
| 416 | Medium Saddle Leather |
| 406 | Silver Vinyl |
| 407 | Silver Leather |
| 408 | Neutral Vinyl |
Color combinations
| Exterior Colors | Interior Colors | |||||
|---|---|---|---|---|---|---|
| Black | Silver | Neutral | Dark Blue | Medium Saddle | Dark Red | |
| Classic White | X | X | X | X | X | X |
| Silver Mist Metallic | X | X | — | X | X | X |
| Corvette Gray Metallic | X | X | X | X | X | X |
| Medium Blue Metallic | X | X | — | X | — | — |
| Dark Green Metallic | X | X | X | — | X | — |
| Bright Yellow | X | X | X | — | X | — |
| Dark Brown Metallic | X | X | X | — | X | — |
| Medium Red Metallic | X | X | X | — | X | X |
| Mille Miglia Red | X | X | X | — | X | X |
| Orange Metallic | X | X | X | — | X | — |
Chassis
| Wheelbase | Length | Width | Weight |
|---|---|---|---|
| 98 in | 185.5 in | 69.0 in | Coupe: Curb: 3,390 lb; Shipping: 3,309 lb Convertible: Curb: 3,396 lb; Shipping: 3,315 lb |
1974 Corvette Engine Options
| Engine Code |
Order Code | CI | HP | Equipment |
|---|---|---|---|---|
| CKZ | L48 | 350 | 195 | 4-Speed |
| CLA | L48 | 350 | 195 | TH400 |
| CLB | L48(California) | 350 | 195 | 4-Speed |
| CLC | L48(California) | 350 | 195 | TH400 |
| CLD | L82 | 350 | 250 | TH400 |
| CLH | L82(California) | 350 | 250 | TH400 |
| CLR | L82 | 350 | 250 | 4-Speed |
| CLS | L82(California) | 350 | 250 | 4-Speed |
| CWM | LS4 | 454 | 270 | 4-Speed |
| CWR | LS4 | 454 | 270 | TH400 |
| CWS | LS4(California) | 454 | 270 | TH400 |
| CWT | LS4(California) | 454 | 270 | 4-Speed |
1974 Corvette Transmission Options
| Code | Type | Transmission |
|---|---|---|
| P | Manual | Muncie 4-Speed |
| A | Manual | M20 Muncie 4-Speed with wide gear ratio |
| B | Manual | M21 Muncie 4-Speed with close gear ratio |
| W | Manual | Warner 4-Speed |
| CK | Automatic | Turbo Hydra-Matic 400 with L48 350 engine |
| CZ | Automatic | Turbo Hydra-Matic 400 with L82 350 engine |
| CS | Automatic | Turbo Hydra-Matic 400 with 454 engine |
1974 Corvette Performance Data
| Engine Code | Engine | Displacement | Power | 0–60 mph | 1/4 Mile | Top Speed | Source |
|---|---|---|---|---|---|---|---|
| Base | 350 ci | 350 ci | 195 hp | 8.3 s | 16.0 s | 125 mph | Car and Driver 1974 |
| L82 | 350 ci | 350 ci | 250 hp | 7.1 s | 15.1 s | 130 mph | Motor Trend 1974 |
| LS4 | 454 ci | 454 ci | 270 hp | 7.0 s | 14.9 s | 132 mph | Automobile-Catalog.com |
Note: These figures are from period road tests when the cars were new. Modern examples vary due to age, condition, modifications, and different transmission/rear axle ratios available. Horsepower ratings switched from gross to net in 1972, affecting comparability across years.
1974 Corvette RPO Codes and Options
| Code | Option | Total |
|---|---|---|
| 1YZ37 | Corvette sport coupe | 32,028 |
| 1YZ67 | Corvette convertible | 5,474 |
| A31 | Power windows | 23,940 |
| Base | Vinyl trim | 12,069 |
| - | Leather trim | 19,959 |
| A85 | Custom shoulder harness | 618 |
| C07 | Auxiliary hardtop | 2,612 |
| C08 | Auxiliary hardtop vinyl | 367 |
| C50 | Rear window defroster | 9,322 |
| C60 | Air conditioning | 29,397 |
| FE7 | Gymkhana suspension | 1,905 |
| J50 | Power brakes | 33,306 |
| LS4 | 454 270 hp engine | 3,494 |
| L48 | 350 195 hp engine | 27,318 |
| L82 | 350 250 hp engine | 6,690 |
| M20 | 4-speed standard manual transmission | 8,862 |
| M21 | 4-speed close-ratio manual transmission | 3,494 |
| M40 | Turbo Hydra-Matic transmission | 25,146 |
| N37 | Tilt-telescopic steering column | 27,700 |
| N40 | Power steering | 35,944 |
| QRM | GR70 x 15 white stripe radial tires | 9,140 |
| QRN | GR70 x 15 blackwall radial tires | 4,260 |
| QRZ | GR70 x 15 white lettered radial tires | 24,102 |
| U05 | Dual horns | 5,258 |
| U58 | AM-FM stereo radio | 19,581 |
| U69 | AM-FM radio | 17,374 |
| UA1 | Heavy-duty battery | 9,169 |
| UF1 | Map light | 16,101 |
| UL5 | Radio delete | 547 |
| YF5 | California emissions | - |
| Z07 | Off-road suspension and brakes | 47 |
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Page last updated: December 2025