1965 24 Hours of Le Mans | |
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The 1965 24 Hours of Le Mans was the 33rd Grand Prix of Endurance, and took place on 19 and 20 June 1965. It was also the twelfth round of the World Sportscar Championship.
For the 1965 season, the development and racing of the Ford GT40 was entrusted to Carroll Shelby. On Shelby's initiative, the GT40s were fitted with the same engine as the Cobras — an iron cast 4.7 L V8, and the Colotti gearbox that proved unreliable was replaced by a German-made ZF.
In parallel, Ford developed a new version of the GT40. The Mark II was developed by Ford subsidiary Kar Kraft in Dearborn under the direction of Roy Lunn. The Mk IIs were powered by a 7.0 L engine based on a Ford Galaxie block. As there was no gearbox available on the market which was able to sustain the torque, the car featured a new 4-ratio Kar Kraft gearbox. Two Mark IIs were entered by Shelby. The cars were finished in a hurry; as there was no time to run a fuel consumption test, Shelby did not know the real fuel consumption of the 7.0 L Mk II.
Scuderia Ferrari entered two P2s, a new version of the prototype, featuring a new DOHC V12 engine. Strangely, Ferrari dispersed some of his effort by entering a 1.6 L Dino 166. Two 365 P2s were also entered, one by NART, the other by Maranello Concessionaires. The 365 P2 was built around a previous year's P chassis with updated aerodynamics and featured a 4.4 L SOHC V12.
Several 3.3 L 250LM prototypes were entered by Ferrari customers. Ferrari had developed the 3.0 L mid-engined 250LM for homologation in the GT category but was refused by the CSI. All but the first example were powered by 3.3 L engines and are often referred to as 275LMs although Ferrari never officially changed the designation. The performance of the 250LM was far from "real" prototypes but as the engine was a close derivative of production Ferrari engines, the car had proved very reliable.