Corvette: Year by Year
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 19641965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Corvette Specs, Options: Year by Year
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 19651966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978
1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
2018 2019 2020 2021 2022 2023 2024
To learn more about the 1991 Corvette, click here.
1991 Corvette Specs
Body Specs |
|
| Wheelbase | 96.2 inches |
| Overhang (Front) | 40.5 inches |
| Overhang (Rear) | 39.7 inches |
| Front Track | 59.6 inches |
| Rear Track |
60.4 inches
ZR-1: 61.9 inches |
| Length |
176.6 inches
ZR-1: 177.4 inches |
| Width |
71.0 inches
ZR-1: 73.291 inches |
|
Ground Clearance
Differential to Ground |
6.8 inches |
|
Ground Clearance
Front Bumper to Ground |
4.9 inches |
|
Ground Clearance
Rear Bumper to Ground |
13.0 inches |
| Minimum Ground Clearance |
4.7 inches
(Measured at Catalytic Converter) |
| Overall Height |
46.7 inches (Coupe)
46.4 inches (Convertible) 46.7 inches (Zr-1) |
| Rocker Panel to Ground (Front) | 6.9 inches |
| Rocker Panel to Ground (Rear) | 6.9 inches |
| Cargo Capacity |
100 lbs. / (Coupe and Convertible)
6.6 cubic feet (Convertible) 12.6 cubic feet (Coupe) Liftover Height: 35.5 Inches (Coupe) |
| Cowl Height | 33.4 inches |
| Effective Head Room | 36.4 inches |
| Shoulder Room | 54.1 inches |
| Hip Room | 49.3 inches |
| Tire Size |
P275/40ZR17 B/W
(Goodyear Eagle 40ZR, Unidirectional) ZR-1 (Rear) P315/35ZR17 |
| Wheel Size |
17" x 9.5" (Front and Rear)
ZR-1 Rear: 17" x 11.0" |
| Recommended Tire Inflation | 35 PSI Front / Rear |
| Manual Six Speed Transmission |
1st Gear 2.68:1
2nd Gear 1.80:1 3rd Gear 1.31:1 4th Gear 1.00:1 5th Gear .75:1 6th Gear .50:1 Reverse Gear 2.50:1 |
| Turbo Hydra-Matic (Automatic) Transmission |
1st Gear 3.06:1
2nd Gear 1.63:1 3rd Gear 1.00:1 4th Gear 0.70:1 Reverse Gear 2.29:1 |
|
Turbo Hydra-Matic (Automatic)
Transmission Lubricant |
Dextron II
8.0 Pints |
|
Maximum Uphill Speed
(Wide Open Throttle) |
1 > 2: 43 MPH
2 > 3: 79 MPH 3 > 4: 116 MPH |
|
Manual Transmission
Lubricant Type |
5W-30 Texaco Code 1650 TL11408A, GM 9985535
2.1 Liters |
| Axle Ratio |
3.07:1, 3.33:1, 2.73:1 (Manual Transmission)
2.59:1, 3.07:1 (Automatic Transmission) |
| Standard Fuel Tank Capacity | 20 Gallons |
| Steering Ratio | 15.7:1 |
|
Turning Diameters
Outside Front |
41.3 feet (Wall to Wall)
40.0 feet (Curb to Curb) |
| Steering Wheel Diameter | 15.0 inches |
|
|
| Twin Turbo Manual |
City: 13
Highway: 20 Combined: 15 |
| Manual |
City: 15
Highway: 23 Combined: 17 |
| Automatic |
City: 15
Highway: 22 Combined: 17 |
| Manual |
City: 15
Highway: 24 Combined: 18 |
|
|
| Model 1YY07 2-Door Hatchback Coupe |
Curb Mass
|
| Model 1YY67 2-Door Convertible |
Curb Mass
|
| Model 1YZ07 2-Door Hatchback Coupe (ZR1) |
Curb Mass
|
|
* Equivalent Test Weight Class - basis for US Environmental Protection Agency emission certifications.
** Shipping weight = Curb Weight Less 106 lbs. |
|
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|
Removeble Plastic Roof Panel
(RPO CC3) |
-3.1 lb.
(-0.9 lb. Front; -2.2 lb. Rear) |
|
Electric Defogger System
Rear Window and Side Mirror (RPO Z6A) |
+0.8 lb.
(+0.4 lb. Front; +0.4 lb. Rear) |
|
Delco-Bose
Premium Audio System (RPO UU8) |
+9.7 lb.
(+3.3 lb. Front; +6.4 lb. Rear) |
|
Custom Adjustable Seats
(RPO AQ9) |
+13.5 lb.
(+6.2 lb. Front; +7.3 lb. Rear) |
|
Automatic Air Conditioning
(RPO C68) |
+2.2 lb. |
|
Leather Seat Trim
(RPO AR9) |
+3.5 lb.
(+1.3 lb. Front; +2.2 lb. Rear) |
|
Adjustable Suspension Package
(RPO Z07) |
+9.5 lb.
(+4.2 lb. Front; +5.3 lb. Rear) |
|
|
| Type: | 90° V8 (LT5: DOHC 32-Valve) |
| Bore / Stroke: |
4.00" / 3.48"
LT-5: 3.90" x 3.66" |
| Engine Weight: |
ZR-1 LT5 596 lb.
Standard L98: 557 lb. |
| Fuel Requirement: |
91-Octane Rating Unleaded Gasoline
(L98, ZR-1 Engines) |
| Compression Ratio: |
L98: 10.0:1
LT5 (ZR-1): 11.0:1 |
| Cylinder Head Material: | Aluminum |
| Cylinder Block Material: |
L98: Cast Alloy Iron
LT5 (ZR-1): Aluminum |
| Oil Pump Type: | Gear |
| Cooling System Capacity |
14.65 Quarts (Manual Transmission)
14.51 Quarts (Automatic Transmission) 16.7 Quarts (ZR-1) |
| Battery |
12 volt - 630 Cold Cranking Amps (CCA)
54 Amp-hours |
| Alternator |
Delco-Remy
105 Amps |
|
Fuel System |
|
| Type |
Electronic Fuel Injection - Tuned Port Injection (TPI)
(L98 and LT5 Engines) |
| Fuel Pump | Electric, Dual Turbine - In Fuel Tank |
| Point of Injection | Fuel Injectors at Inlet Ports |
| Flow | Pulse |
|
Horsepower |
|
| ZR-1 Engine LT5 (350 cubic inch) |
375 hp @ 5,800 RPM;
Torque: 370 lb-ft @ 4,800 RPM Axle Ratio: 3.45:1 |
| Standard Engine L98 (350 cubic inch) |
Manual Transmission: 250 hp @ 4,400 RPM;
Torque: 350 lb-ft @ 3,200 RPM Axle Ratio: 3.45:1 Automatic Transmission: 245 hp @ 4,000 RPM; Torque: 345 lb-ft @ 3,200 RPM Axle Ratio: 2.59:1 Automatic Transmission: 250 hp @ 4,400 RPM; Torque: 350 lb-ft @ 3,200 RPM Axle Ratio: 3.07:1 Automatic Transmission: 245 hp @ 4,000 RPM; Torque: 345 lb-ft @ 3,200 RPM Axle Ratio: 2.73:1 |
|
Ignition System |
|
|
Spark Plug
(Standard L98 Engine) |
FR5LS
Make: AC |
|
Spark Plug
(ZR-1 LT5 Engine) |
FR2LS
Make: AC |
| Spark Plug Thread | M14 x 1.25 |
| Spark Plug Gap | .035 inch |
| Spark Plug Tightening Torque | 18 - 22 lb. - ft. |
|
Brakes |
|
| Type | Hydraulic Power Brake Front and Rear Disc |
| Effective Area |
32.4 Square Inches (209 Square cm.) (Front)
18.4 Square Inches (119 Square cm.) (Rear) |
| Gross Lining Area |
33.0 Square Inches (213 Square cm.) (Front)
18.4 Square Inches (119 Square cm.) (Rear) |
| Swept Area |
111.9 Square Inches (722 Square cm.) (Front)
91.3 Square Inches (589 Square cm.) (Rear) |
| Rotor |
Outer Working Diameter: (302 mm.) 9.9 inches
Inner Working Diameter: 7.3 Inches (222 mm.) (Front), 7.6 Inches (232 mm.) (Rear) Type and Material: Vented, Gray Iron Vented (Front) HCE Iron Vented (Rear) |
1991 Corvette Options
| RPO | Description | Production | Price |
| 24S | Removable Roof Panel, blue tint (coupe) | 6,991 (33.87%) | $615.00 |
| 64S | Removable Roof Panel, bronze tint (coupe) | 3,036 (14.71%) | $615.00 |
| AC1 | Power Passenger Seat | 17,267 (83.66%) | $290.00 |
| AC3 | Power Driver Seat | 19,937 (96.60%) | $290.00 |
| AQ9 | Sports Seats, leather | 10,650 (51.60%) | $1,050.00 |
| AR9 | Base Seats, leather | 9,505 (46.05%) | $425.00 |
| B2K | Callaway Twin Turbo (not GM installed) | 71 (0.34%) | $33,000.00 |
| C2L | Dual Removable Roof Panels (coupe) | 5,031 (24.38%) | $915.00 |
| C68 | Electronic Air Conditioning Control | 19,233 (93.19%) | $180.00 |
| CC2 | Auxiliary Hardtop (convertible) | 1,230 (5.96%) | $1,995.00 |
| FX3 | Selective Ride and Handling, electronic | 6,894 (33.40%) | $1,695.00 |
| G92 | Performance Axle Ratio | 3,453 (16.73%) | $22.00 |
| KC4 | Engine Oil Cooler | 7,525 (36.46%) | $110.00 |
| MN6 | 6-Speed Manual Transmission | 5,875 (28.47%) | n/a |
| NN5 | California Emission Requirements | 3,050 (14.78%) | $100.00 |
| U1F | Stereo System with CD, Delco-Bose | 15,345 (74.35%) | $1,219.00 |
| UJ6 | Low Tire Pressure Warning Indicator | 5,175 (25.07%) | $325.00 |
| UU8 | Stereo System, Delco-Bose | 3,786 (18.34%) | $823.00 |
| V56 | Luggage Rack (convertible) | 886 (4.29%) | $140.00 |
| Z07 | Adjustable Suspension Package (coupe) | 733 (3.55%) | $2,155.00 |
| ZR1 | Special Performance Package (coupe) | 2,044 (9.90%) | $31,683.00 |
|
Total Production:
20,639
Notes: Base Corvette Coupe with 350 cu. in. 245 hp engine and four speed automatic transmission: $32,455.00. |
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Colors
| Code | Exterior | Quantity | Interior | Soft Top | |
| 10 | White | 4,305 (20.86%) | Blue / Black / Gray / Red / Saddle | Black / Beige / White | |
| 25 | Steel Blue Metallic | 835 (4.05%) | Blue / Black | Blue / Black / White | |
| 35 | Yellow | 650 (3.15%) | Black / Gray / Saddle | Black / Beige / White | |
| 41 | Black | 3,909 (18.94%) | Blue / Black / Gray / Saddle | Black / Beige / White | |
| 42 | Turquoise Metallic | 1,621 (7.85%) | Black / Saddle | Blue / Black | |
| 75 | Dark Red Metallic | 1,311 (6.35%) | Black / Saddle | Black / Beige / White | |
| 80 | Quasar Blue Metallic | 1,038 (5.03%) | Black / Saddle | Black / Beige | |
| 81 | Bright Red | 5,318 (25.77%) | Black / Gray / Red / Sadddle | Black / Beige / White | |
| 91 | Polo Green Metallic | 1,230 (5.96%) | Black / Saddle | Black / Beige | |
| 96 | Charcoal Metallic | 417 (2.02%) | Black / Gray / Saddle | Black / White | |
