Dream Car Giveaway




Not a year of great change after the launch of the ZR-1 the previous year.

  • Standard Corvettes were restyled at the rear to more closely resemble the ZR-1 with a convex rear fascia and two rectangular tail lamps on either side of the car.
  • A new front end with wrap-around parking lamps was used on both models, along with new side-panel louvers and wider body-color body side moldings.
  • Although more alike the standard Corvette in a visual sense, the ZR-1 again had difterent doors and a wider rear to accommodate its 11-inch wide rear wheels.
  • Also the high-mounted stop lamp went on the roof of the ZR-1, instead of on the rear fascia, as on the YY Corvette.
  • All models were again equipped with ABS Il-S anti-lock braking and driver's side airbag as well as an anti-theft system.
  • The ZR-1 was again powered by the 32-valve DOHC 5.7-liter V-8 matched with a six-speed transaxle.
  • Corvette models used the 5.7-liter TPI V-8 fitted with the four-speed overdrive automatic or optional six-speed manual transmission.
  • Corvette colors were
    • White
    • Steel Blue Metallic
    • Yellow
    • Black
    • Turquoise Metallic
    • Dark Red Metallic
    • Quasar Blue Metallic
    • Bright Red
    • Polo Green Metallic
    • Charcoal Metallic
  • Interiors came in Blue; Black; Gray; Red; Saddle; and White.
  • Standard features included a removable body-color roof panel for hatchbacks or a convertible top.
  • Black, Saddle, Red, White, and (late in the year) Blue top colors were available, but the choices were determined by body paint color.
  • Cloth upholstery was also standard.


  • The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
  • The coupe serial numbers ranged from 1G1YY238*M5100001 to 1G1YY238*M5118595
  • The convertible serial numbers ranged from 1G1YY338*M5100001 to 1G1YY338*M5118595
  • The ZR1 serial numbers ranged from 1G1YZ23J*M5800001 to 1G1YZ23J*M5802044
Position Character Description
1 1 US built
2 G General Motors product
3 1 Chevrolet Motor Division vehicle
4 & 5 YY Basic Corvette
YZ Corvette ZR-1
6 2 or 3 Body style number
  • 2 = Two door hatchback style 07, 08, 77, or 87
  • 3 = Two door convertible style 67
7 1 or 2 1=Manual seat belts
3=Manual belts with driver-inflatable restraint system
4=Automatic belts
8 8 L98 5.7-liter Tuned-Port-Injection Chevrolet or GM of Canada V8
J LT5 - 5.7-liter TPI V-8
9 ? A check digit that calculates the characters in the serial number and gives it a single digit code and can be used to verify that the serial number is legitimate
10 M The model year where 1991
11 5 Bowling Green, KY
12-17 100001 and up production sequence for coupes and convertibles
800001 and up production sequence for ZR-1s
  • Corvette engines have the last six digits of the VIN stamped on the block just ahead of the cylinder head on the right-hand side combined with a three-letter engine code suffix
  • Also cast into the top rear of the block is a four-symbol code indicating when the engine was built
    • The first letter of the date code shows the month the block was cast
    • The one or two numbers shows the month
    • The last digit shows the year
  • Engine suffixes:
Code Engine Horsepower Compression Transmission Fuel Supply Extra features
ZTA L98 350-cid 245/250-hp V-8 10.0:1 automatic tuned port injection  
ZTB L98 350-cid 245/250-hp V-8 10.0:1 manual tuned port injection Engine oil cooler
ZTC L98 350-cid 245/250-hp V-8 10.0:1 automatic tuned port injection Engine oil cooler
ZTK LT5 350-cid 375-hp V-8 11.0:1 manual tuned port injection  
  • The 1991 Corvette exterior colors were:
    • 10 = White
    • 25 = Steel Blue Metallic
    • 35 = Yellow
    • 41 = Black
    • 42 = Turquoise Metallic
    • 75 = Dark Red Metallic
    • 80 = Quasar Blue Metallic
    • 81 = Bright Red
    • 91 = Polo Green Metallic
    • 96 = Charcoal Metallic
  • Upholstery Codes
Color Cloth Upholstery Leather Upholstery
Black 19C 193
Saddle 60C 603
Blue   223
Red   733
Gray   903


Model Model No. Body/Style No. Body Type Factory Price Shipping Weight Production Total
Coupe 1YY Y07
2-dr. Hatch Coupe - 2 passenger

2-dr. Hatch Coupe - 2 passenger

$32,455 3223 14,967
Convertible 1YY Y67
2-dr. Convertible - 2 passenger

2-dr. Convertible - 2 passenger

$38,770 3263 5,672
ZR-1 1YZ Z07
2-dr. Hatch Coupe - 2 passenger

2-dr. Hatch Coupe - 2 passenger

$64,138 3465 2,044


Feature Standard Engine (RPO L98) ZR-1 Engine (RPO LT5)
Type V-8, 90-degree Overhead valve V-8, 90-degree Overhead valve with 4 valves per cylinder and 4 overhead camshafts
Block Cast iron block and aluminum cylinder head Cast iron block and cylinder head
Displacement 350 cid (5.7 liters) 350 cid (5.7 liters)
Bore & Stroke 4.00" x 3.48" 4.00" x 3.48"
Compression ratio 10.0:1 11.0:1
Brake horsepower 245 @ 4000 (250-hp for hatchbacks using 3.07:1 rear axle due to use of low-restriction mufflers with this option combination only) 375 @ 5800 rpm
Torque 340 lb-ft @ 3200 370 lb-ft @ 5600
Main bearing five five
Valve lifters hydraulic hydraulic
Fuel supply Tuned-port induction (TPI) system Tuned-port induction (TPI) system


  • Automatic Transmission
    • Four-speed Turbo Hydra-Matic (TMH 700-R4)
    • floor-mounted gear shifter
    • gear ratios
      • 1st = 3.06:1
      • 2nd = 1.63:1
      • 3rd = 1.00:1
      • 4th = 0.70:1
      • Rev = 2.29:1
    • Final drive ratio: 2.59:1 or 3.07:1
  • Four-speed Manual Transmission with overdrive
    • floor-mounted gear shifter
    • gear ratios
      • 1st = 2.88:1
      • 2nd = 1.91:1
      • 3rd = 1.33:1
      • 4th = 1.00:1
      • overdrive = 0.67:1
      • Rev = 2.78:1
    • Final drive ratio: 3.07:1
  • Six-speed Manual with overdrive
    • Final drive ratio: 3.07:1


Feature Coupe Convertible ZR-1
Wheelbase 96.2 inches (2.443 m) 96.2 inches (2.443 m) 96.2 inches (2.443 m)
Overall length 176.5 inches (4.483 m) 176.5 inches (4.483 m) 177.4 inches (4.506 m)
Overall width 71.0 inches (1.803 m) 71.0 inches (1.803 m) 74.0 inches (1.880 m)
Overall height 46.7 inches (1.186 m)   46.7 inches (1.186 m)
Front tread 59.6 inches (1.514 m) 59.6 inches (1.514 m) 59.6 inches (1.514m)
Rear tread 60.4 inches (1.534 m) 60.4 inches (1.534 m) 61.9 inches (1.572m)
Front Tires P275/40ZR-17 Goodyear Eagle GT P275/40ZR-17 Goodyear Eagle GT P275/40ZR-17 Goodyear Eagle GT
Rear Tires P275/40ZR-17 Goodyear Eagle GT P275/40ZR-17 Goodyear Eagle GT P315/35ZR-17 Goodyear Eagle GT
Steeringrack and pinion (power assisted)
Front suspensionSingle fiberglass composite monoleaf transverse spring with unequal-length aluminum control arms and stabilizer bar
Rear suspensionFully independent five-link system with transverse fiberglass single-leaf springs, aluminum upper/lower trailing links and strut-rod tie-rod assembly
BrakesFour-wheel power disc
Body constructionUnibody with partial front frame
Fuel tank20 US Gal (16.7 Imp Gal) (76 liters)


RPO AC1 Power passenger seat $290
RPO AC3 Power driver seat $290
RPO A09 Leather sports seats $1050
RPO AR9 Base leather seats $425
RPO B2K Callaway Twin Turbo installed by Callaway Engineering $33,000
RPO CC2 Auxiliary hardtop for convertible $1995
RPO C2L Dual removable roof panels for coupe $915
RPO 24S Removable roof panels with blue tint for coupe $615
RPO 64S Removable roof panels with bronze tint for coupe $615
RPO C68 Electronic air conditioning control $180
RPO FX3 Electronic Selective Ride & Handling system $1,695
RPO G92 Performance axle ratio 3.07:1 $22
RPO KC4 Engine oil cooler $110
RPO MN6 Six-speed manual transmission no-cost option
RPO NNS California emissions requirements $100
RPO UJ6 Low tire pressure warning indicator $325
RPO UU8 Delco-Bose stereo system $823
RPO UlF Delco-Bose stereo system with compact disc changer $1,219
RPO V56 Luggage rack for convertible $140
RPO Z07 Adjustable handling package (733 were built) $2,500
RPO ZR1 Special performance package for coupe $31,683


1991 Corvette Notes

  • Model-year production: 20,639
  • Calendar-year sales: 17,472.
  • The $33,000 Callaway Twin-Turbo engine package could again be ordered through specific Chevrolet dealers as RPO B2K.
  • Cars that received this package were sent from Bowling Green, Kentucky to the Callaway factory in Old Lyme, Connecticut, to receive engine modifications and other upgrades.
  • Callaway built its 500th conversion on September 26, 1991.
  • Twin Turbos made after that were "Callway 500" editions with special features and a $600 higher price tag.
  • For 1991 Callaway Twin-Turbo Corvettes a different engine-coding system was used.
  • Callaway engines were stamped with the first two symbols indicating model year, followed by three symbols indicating order in the Callaway production sequence, followed by four symbols matching the last four digits of the Chevrolet VIN.
  • Corvette buyers who wanted to participate in World Challenge Series racing had to buy a stock Corvette from Chevrolet and handle race-prep work themselves.


1991 Corvette

1991 Corvette

1991 Corvette

1991 Corvette

1991 Corvette

1991 Corvette

1991 Corvette

1991 Corvette