The Cosworth DFV (Double Four-Valve). The most successful Formula 1 engine ever designed.
"We thought it must be possible to make an interesting living messing about with racing cars and engines. That was the total objective behind the formation of Cosworth."
Cosworth's first premises at Shaftesbury Mews, London
Wanting an engine to fit his radical, new Lotus design, Colin Chapman contacted Mike Costin and Keith Duckworth (Cos-Worth) to come up with something revolutionary. Duckworth worked 18 hour days for 9 months, losing 40lbs in weight during the engineering process.
Cosworth founders Keith Duckworth (second left) and Mike Costin (third left) are pictured with colleagues Bill Brown and Ben Rood
At the third race of the 1967 season, Chapman's Lotus 49, sporting a DFV bolted to the cockpit and forming the car's rear chassis, made its debut at the 1967 Dutch Grand Prix. Graham Hill put his car on pole position by half a second, but it was team-mate Jim Clark who stormed home to win.
The legendary DFV had been born.
In 1969 and 1973 every World Championship race was won by Cosworth DFV-powered cars, with the engine taking a total of 155 wins from 262 races between 1967 and 1985.
The last victory for a DFV powered car was in 1983 when Michele Alboreto drove the Tyrrell 011 to win the 1983 USA East Grand Prix at Detroit. It was also the final win for Tyrrell.
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