1974 Chevrolet Corvette VIN Numbers

VIN Range	1Z37J4S400001 – 1Z37J4S437502
1 (First Digit)	Make/Manufacturer. 1 – Chevrolet
Z (Second Digit)	Model series. Z – Corvette
37 (Third and Fourth Digits)	37- Corvette Coupe / 67 – Corvette Convertible
J (Fifth Digit)	Engine type. J – Base Engine / T – L82 / Z – LS4
4 (Sixth Digit)	Model Year. 4 – 1974
S (Seventh Digit)	Vehicle Assembly Location. S – St. Louis, Missouri
4XXXXX (Eighth thru Thirteenth Digits)	Plant Sequence Numbers.

The last six digits begin at 400001 and run thru 437502, accounting for 37,502 Corvette Coupes/Convertibles built in 1974. Each Vehicle Identification Number (VIN) is unique to an individual car.

1974 Corvette Vehicle Serial Number Plate

For all 1974 Corvettes, the location of the Vehicle Identification Number (VIN) is stamped on a plate attached to the left front body hinge pillar. (See Figure 1 below.)

1974 C3 Corvette Body Number Trim & Point Plate

Location: On the driver’s side upper left-hand door hinge pillar.
Example:
A01 – Body build date code.
- A – Designates the Month (See Chart Below).
  - A – Aug., 1973., B – Sep., 1973., C – Oct., 1973., D – Nov., 1973., E – Dec, 1973., F – Jan., 1974., G – Feb., 1974., H – Mar., 1974., I – Apr., 1974., J – May, 1974., K – June, 1974., L – Jul., 1974., M – Aug., 1974., N – Sept., 1974
  - 01 – Designates the Day of the Month.
400 – Interior Trim code. 400 – Black (Vinyl)
56L – Exterior Color Code. 56 – Bright Yellow
- Codes were often followed by the letter L, but some trim plates had an exterior code preceded by the number 9 with no letter L following.

1974 Corvette Engine Identification & Engine Number

Location:
- All engines are stamped on the top front of the right-hand bank of cylinder and case.
Engine Identification Example:
- V0127CKZ
  - V – Engine build location.
  - T – Tonawanda, NY. (All big block engines.)
  - V – Flint, MI. (All small block engines.)
  - 0127 – Date Code. Month and Day. 0127 – January 27.
  - CKZ – Type Designation. CKZ – 350ci 195hp, manual transmission.
  - (Refer to the Engine Suffix section of the 1974 Corvette Specification Page for a list of all Type Designations.)
Engine Number Example:
- 14S400001
  - 1 – Division. 1 – Chevrolet
  - 3 – Model year. 3 – 1974
  - S – Assembly Plant Designation. S – St. Louis
  - 400001 – VIN Sequential Serial Number

1974 Corvette Transmission Identification & Transmission Number

Location:
- 4-Speed (Muncie) – Stamped on the top right side of the case at adapter.
- Turbo Hydra-matic Automatic – Name plate tag on right-hand side of case.
Transmission Identification Example:
- WDP2E01D
  - WD – Type Designation. WD – 4-Speed / CK – Turbo Hydra-matic
    - P – Source Designation.
    - P – Muncie
    - 4 – Year. 4 – 1974
    - E01D – Production Month and Date.
    - E – Designates Month (See Chart Below.)
      - A – Jan. / B – Feb. / C – Mar. / D – Apr. / E – May / H – June / K – July / M – Aug. / P – Sept. / R – Oct. / S – Nov. / T – Dec.
    - 01 – Designates Day of the month.
    - D or N – Designates Day or Night Shift on Automatic only.