Guldstrand Engineering is an American Chevrolet tuning company, founded by racing driver Dick Guldstrand. He had begun racing on the Southern California dirt tracks in the late 1950s. With a sponsorship from H.E. Baher, a local California Chevrolet dealer he raced his own Corvette and won most of the West Coast BP events in the early 1960s. His sponsor was so pleased, he bought Guldstrand one of the first Stingrays to race in the fall of 1962.
From 1963-1965, he won three consecutive SCCA Pacific Coast Championships and the same year he was named the California Sports Car Club Driver of the Year. In 1966, Guldstrand won the GT-class at the Daytona 24-hour race, and finished 9th overall. Later that year, he was named President of the Southern California Drivers Association. The following year, he raced at Le Mans and set a track record in the GT-class while leading the race for 13 hours. In both 1966 and 1967, Guldstrand drove the legendary Grand Sport Corvette at the 12 hours of Sebring for Roger Penske.
In 1968, Guldstrand opened his own business, Guldstrand Engineering Inc., in Culver City, California. Soon, he was designing and building high performance cars for competition throughout North America, South America, and Western Europe.
Dick Guldstrand played an enormous role in the development and testing of the 1985 Corvette. He set new track records at the Mid-Ohio 24 hours, finishing both 1st and 2nd overall. He also set new track records at the 12 hours at Willow Spring for enduro cars, once again finishing 1st and 2nd overall. His personal involvement, along with his GSS race team, set the stage for the future racing series. The following year, he built and set up the Guldstrand 1986 Corvette, which made a clean sweep of all events at the SCCA National Solo Championships. Later that year, Guldstrand developed his high performance dream car, the GS-80.
In the 1990s he began developing the Guldstrand Grand Sport 90. A supercar based on the Corvette ZR-1 chassis. The GS-90 sported an entirely new body along with major upgrades to its engine, suspension, wheels, tires, and rear end. The finished product debuted on the Chevrolet stand at the 1994 Los Angeles Auto Show. Just like the standard Corvette C4, the GS-90 was available as a Coupe and a Roadster.