Below is a listing of common identification numbers for the 1975 Corvette including engine block, head id, casting numbers and more.
| Vehicle Identification Number | |
|---|---|
| 1Z37J5S400001 - 1Z37J5S438465 | |
| Digit | Definition |
| 1st | 1 = GM Division = Chevrolet |
| 2nd | Z = Series = Corvette |
| 3rd/4th | Body Style: 37 = Coupe, 67 = Convert |
| 5th | Engine Type: J = L48, T = L82 |
| 6th | 5 = Model Year = 1975 |
| 7th | Assembly Plant: S = St. Louis, MO. |
| Last 6 digits | Production Number starting with 400001 and up. |
| A: October | B: November |
| C: December | D: January |
| E: February | F: March |
| G: April | H: May |
| I: June | J: July |
The Corvette tooling changeover period for the 1976 model year was August 8, 1975 through August 18, 1975.
Ending Vehicle Serial Numbers:
| October 1974: 02385 (33347) | November 1974: 06180 |
| December 1974: 09190 | January 1975: 13159 |
| February 1975: 17112 | March 1975: 20856 |
| April 1975: 25228 | May 1975: 29379 |
| June 1975: 33474 | July 1975: 38465 |
Source: Birthplace of Legends - The Story of Corvette production at the St. Louis Assembly Plant 1953-1981 - Peter J. Licastro
| Engine Suffix ID Numbers | |
|---|---|
| CHA: | 350ci, 165hp, (manual transmission) |
| CHB: | 350ci, 165hp, (automatic transmission) |
| CHC: | 350ci, 205hp, (manual transmission) |
| CHR: | 350ci, 205hp, (automatic transmission, California emissions) |
| CHU: | 350ci, 165hp, (manual transmission) |
| CHZ: | 350ci, 165hp, (automatic transmission, California emissions) |
| CKC: | 350ci, 205hp, (automatic transmission) |
| CRJ: | 350ci, 165hp (manual transmission) |
| CRK: | 350ci, 165hp (automatic transmission) |
| CRL: | 350ci, 205hp (manual transmission) |
| CRM: | 350ci, 205hp, (automatic transmission) |
| CUA: | 350ci, 165hp, (manual transmission) |
| CUB: | 350ci, 165hp (manual transmission) |
| CUD: | 350ci, 205hp (manual transmission) |
| CUT: | 350ci, 205hp (manual transmission) |
| Block ID Numbers | |
|---|---|
| 3970010: | All Engines |
| Head ID Numbers | |
|---|---|
| 333882: | All Engines |
| Carburetor ID Numbers | |
|---|---|
| Rochester Q-jet #7045210: | 350ci, 205hp (automatic transmission) |
| Rochester Q-jet #7045211: | 350ci, 205hp (manual transmission) |
| Rochester Q-jet #7045222: | 350ci, 165hp (automatic transmission) |
| Rochester Q-jet #7045223: | 350ci, 165hp (manual transmission) |
| Distributor ID Numbers | |
|---|---|
| 1112880: | 350ci, 165hp (California emissions) |
| 1112883: | 350ci, 205hp |
| 1112888: | 350ci, 165hp |
| 1112979: | 350ci, 205hp (second design) |
| Alternator ID Numbers | |
|---|---|
| 1100544: | All with air conditioning. |
| 1100950: | All without air conditioning. |
| 1102474: | With air conditioning and late production date. |
| 1102484: | Without air conditioning and late production date. |