Description
How would you like an actual Cosworth Formula 1 piston forging to display in your home or office? These are incredibly rare motorsport memorabilia items, but we have a small number of these forgings for sale.
The forgings were produced in 2002 and would have eventually have been used to produce pistons for the Cosworth CK engines that were destined for the Jaguar R3. As such, they are believed to be the only piston forgings still available from an incredible era in Formula 1 history.
Details:
- Diameter = 97 mm
- Height = 50 mm
- Weight = 510 g
- Material = High strength aluminium alloy
Cosworth CK Engine
The CK engine was active in Formula 1 from 1999 to 2003. Designed and manufactured initially for Stewart Grand Prix in 1999, the CK engine represented a change in design philosophy from Cosworth as they sought to reestablish themselves as the top F1 engine manufacturer. The CK engine included numerous departures from previous Formula 1 engine designs, leading to what was possibly the lightest engine on the grid. By 2002, the CK was capable of speeds of up to 18,300 rpm with power in excess of 850 bhp.
Following a race-winning debut season with Stewart Grand Prix, the CK engine went on to power the team, now branded as Jaguar Racing, until the middle of 2002. A customer-spec version of the CK engine was supplied to Arrows Grand Prix in 2002 and to Minardi for the following year.
Cosworth CK Formula 1 Piston Forging
The piston was perhaps the most highly-stressed component in the engine. It had to withstand huge forces over a sustained period of time. At speeds of 18,300 rpm the piston moved up and down 300 times per second. That’s 30 times in the blink of an eye! Despite the incredible forces that it had to endure, it also had to be as light as possible.
That’s why the Cosworth CK Formula 1 piston forging is made from a secret, bespoke aluminium alloy material. It has been developed over many years to enable the piston to survive in the harshest of environments. Special attention was paid to ensure that the grain flow in the forging was optimised for maximum strength.













