Grand Sport

Standard Equipment

  • Original Style Tube Chassis
  • Independent Front and Rear Suspension             
  • Aluminum Radiator with Electric Fans
  • Rear Transverse Leaf Spring
  • Limited Slip Differential
  • Wilwood 4 Piston Disc Brakes
  • Stainless Steel Fuel Tank
  • Hand Laid Fiberglass Body
  • Clear Headlight Covers
  • Hood Vents
  • Leather Hood Straps
  • Rear Brake Ducts
  • Rear Differential Access Converted to Trunk
  • Primered Steel Side Pipes
  • Original Style Steering Wheel
  • Corvette Grand Sport Dash and Gauges
  • Power Steering
  • Carpeted Flooring
  • Hard Dash and Door Panels and Race Seats
  • Blue or Black Leather and Carpets


  • Twin Stripes
  • Roundels
  • Black-Out Package
  • Double Clear Coat
  • Custom Color Paint
  • Set of Painted White Headight Covers
  • Rear Tail Circular Cut-Outs and Fender Slots
  • Functional Diff Oil Cooler
  • Non-Functional Diff Oil Cooler
  • Silver Ceramic Coated Side Pipes
  • Burnished S/S Side Pipes
  • Fuel Pump Fitted into Fuel Tank
  • Touring Interior
  • Push Button Start
  • Diamond Stitched Interior
  • Power Windows
  • Air Conditioning
  • Right Hand Drive Option
  • Custom Piping on Seats
  • Sound Deadening and Heat Dissipation
  • 15" Halibrand Style Aluminum Wheels
  • 17" Front 18" Halibrand Style Wheels
  • 15" Magnesium Grand Sport Wheels
  • Custom Painted Aluminum Wheel Centers




In 1962, with the blessing of Chevrolet’s top management, Zora Arkus-Duntov initiated a program to create a competitive road racer based on the newly designed Corvette C-2 Stingray. Duntov’s objective was to suddenly and surprisingly unleash on the international road racing community 125 very fast, high horsepower, great handling race cars, all based on a street capable production car footprint. Although the Grand Sport Cars eventually qualified as GT production cars under international racing rules, GM executives learned of Duntov’s plan to make these cars available to independent road racers that could race without the official GM endorsement, and officially stopped the program. Only five of these Corvettes had been completed and Duntov was ordered to destroy them. Miraculously, each of the prototypes escaped destruction orders, falling into the hands of private racers who preserved their heritage for future generations.


The original Grand Sports are in private collections, and are extremely valuable and highly coveted - not because of what they accomplished, but because of what might have been. Now, you too, can share the Grand Sport experience. Superformance and Duntov Motor Company have painstakingly reproduced the chassis, body panels and accessories required to replicate this extraordinary car. You can own a Corvette Grand Sport by Superformance, a spectacular dream car that is being offered as a complete TKM (turn key minus) unit ready to accept your choice of GMPP engines and transmissions. They are as close to the original as is technically possible. Many may wish what might have been, but you have an opportunity to experience what actually is!


The Corvette Grand Sport originally raced with several different engines and Borg Warner T-10 4 speed Manual transmissions. In its racing debut early in 1963, the car sported a production 360 HP, 327 CID fuel injected motor and a “stock” appearance. The most serious factory engine was a 377 cubic inch displacement, all-aluminum smallblock with four Weber sidedraft carburetors, rated 550 hp (410 kW) at 6400 rpm. Superformance has built our chassis in such a way to allow the engines and transmissions of the past or to accomodate any of the newer LS-series or E-Rod series of engines and transmissions from GM Performance Parts.


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