1966 Corvette Identification Numbers
| VIN Tag Information | |
|---|---|
| 194376S100001 - 194376S127720 (coupe) 194676S100001 - 194676S127720 (convertible) |
|
| Digit | Definition |
| 1st | Division: 1 = Chevrolet |
| 2nd / 3rd | Series: 94 = Corvette |
| 4th/5th | Body Style: 37 = 2-door coupe, 67 = 2-door convertible |
| 6th | Model Year: 6 = 1966 |
| 7th | Assembly Plant: S = St. Louis, MO. |
| Last 6 digits | Production Number starting with 100001 - 127720 |
| Engine Suffix ID Numbers | |
|---|---|
| HD: | 327ci, 350hp (air injection reactor, manual transmission) |
| HE: | 327ci, 300hp (manual transmission) |
| HH: | 327ci, 300hp (air injection reactor, manual transmission) |
| HO: | 327ci, 300hp (automatic transmission) |
| HP: | 327ci, 350hp (manual transmission, power steering) |
| HR: | 327ci, 300hp (air injection reactor, automatic transmission) |
| HT: | 327ci, 350hp (manual transmission) |
| IK: | 427ci, 425hp (manual transmission) |
| IL: | 427ci, 390hp (manual transmission) |
| IM: | 427ci, 390hp (air injection reactor, manual transmission) |
| IP: | 427ci, 425hp/450hp (manual transmission) |
| IQ: | 427ci, 390hp (automatic transmission) |
| IR: | 427ci, 390hp (air injection reactor, automatic transmission) |
| KH: | 327ci, 350hp (air conditioning, air injection reactor, manual transmission, power steering) |
| Block ID Numbers | |
|---|---|
| 3858174: | 327ci |
| 3869942: | 427ci |
| 3892657: | 327ci (late production, unknown use) |
| 3855961: | 427ci (early production, unknown use) |
| Head ID Numbers | |
|---|---|
| 3782461: | 327ci, 300hp, 350hp |
| 3872702: | 427ci, 390hp |
| 3873858: | 427ci, 450hp / 425hp |
| Carburetor ID Numbers | |
|---|---|
| Holley R3247A #3886101: | 427ci, 450hp / 425hp |
| Holley R3367A #3884505: | 327ci, 300hp, 350hp |
| Holley R3370A #3882835: | 427ci, 390hp |
| Holley R3605A #3890499: | 327ci, 300hp, 350hp (air injection reactor) |
| Holley R3606A #3892341: | 427ci, 390hp (air injection reactor) |
| Distributor ID Numbers | |
|---|---|
| 1111093: | 427ci, 450hp / 425hp (transistor ignition) |
| 1111141: | 427ci, 390hp |
| 1111142: | 427ci, 390hp (transistor ignition) |
| 1111153: | 327ci, 300hp |
| 1111156: | 327ci, 350hp |
| 1111157: | 327ci, 350hp (transistor ignition) |
| Alternator ID Numbers | |
|---|---|
| 1100693: | 327ci, 427ci |
| 1100694: | 327ci, 427ci (air conditioning) |
| 1100696: | 327ci, 427ci (transistor ignition, no A/C) |
| 1100750: | 327ci, 427ci (air conditioning) |
Trim Tag and VIN Tag:
The trim tag located below the glovebox door provides the following production details:
- Build Date: D22 – December 22, 1965
- Style: 66 467 – 1966 convertible
- Trim: STD – Black vinyl upholstery
- Body: S2991– Body #2,991 built in St. Louis, Missouri
- Paint: 984AA – Sunfire Yellow paint