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Supporting Vendors / Dealers - Supporting Membership - Advertising Information
1974 Corvette Identification
| Vehicle Identification Number |
| 1Z37J4S400001 - 1Z37J4S440606 |
| 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, Z = LS4 |
| 6th |
4 = Model Year = 1974 |
| 7th |
Assembly Plant: S = St. Louis, MO. |
| Last 6 digits |
Production Number starting with 400001 and up. |
| Engine Suffix ID Numbers |
| CKZ: |
350ci, 195hp, (manual transmission) |
| CLA: |
350ci, 195hp, (automatic transmission) |
| CLB: |
350ci, 195hp, (manual transmission, California emissions) |
| CLC: |
350ci, 195hp, (automatic transmission, California emissions) |
| CLD: |
350ci, 250hp, (automatic transmission) |
| CLH: |
350ci, 250hp, (automatic transmission, California emissions) |
| CLR: |
350ci, 250hp, (manual transmission) |
| CLS: |
350ci, 250hp (California emissions, manual transmission) |
| CWM: |
454ci, 270hp (manual transmission) |
| CWR: |
454ci, 270hp (automatic transmission) |
| CWS: |
454ci, 270hp, (automatic transmission, California emissions) |
| CWT: |
454ci, 270hp, (California emissions, manual transmission) |
| Block ID Numbers |
| 3970010: |
350ci, 195hp, 250hp |
| 3999289: |
454ci, 270hp |
| Head ID Numbers |
| 333882: |
350ci, 195hp, 250hp |
| 336781: |
454ci, 270hp |
| Carburetor ID Numbers |
| Rochester Q-jet #7044221: |
454ci, 270hp (manual transmission) |
| Rochester Q-jet #7044206: |
350ci, 195hp (automatic transmission) |
| Rochester Q-jet #7044207: |
350ci, 195hp (manual transmission) |
| Rochester Q-jet #70445210: |
350ci, 250hp (automatic transmission) |
| Rochester Q-jet #7044211: |
350ci, 250hp (manual transmission) |
| Rochester Q-jet #7044225: |
454ci, 270hp (automatic transmission) |
| Rochester Q-jet #7044505: |
454ci, 270hp (automatic transmission, California emissions) |
| Rochester Q-jet #7044506: |
350ci, 250hp (automatic transmission, California emissions) |
| Rochester Q-jet #7044507: |
350ci, 250hp (California emissions, manual transmission) |
| Distributor ID Numbers |
| 1112114: |
454ci, 270hp |
| 1112150: |
350ci, 250hp |
| 1112247: |
350ci, 195hp |
| 1112544: |
350ci, 195hp (California emissions, manual transmission) |
| 1112850: |
350ci, 195hp (California emissions, manual transmission) |
| 1112851: |
350ci, 195hp (automatic transmission, California emissions) |
| 1112853: |
350ci, 250hp (automatic transmission) |
| Alternator ID Numbers |
| 1100544: |
All engines with air conditioning. |
| 1100950: |
All engines without air conditioning. |
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