What you may not know is that the 600hp race version—built by Roush Yates Racing Engines (RYRE)—uses a production block, heads, direct injection, cam drive, gaskets and valvesprings. It also uses stock bore and stroke, compression ratio, and valve sizes.

We’ve run [unrestricted] dyno tests close to 1,000 hp. When we set the 223-mph speed record at Daytona, the V6 was making 800 hp. And we ran 10 miles at WOT.” They’ve also run more than 14,000 simulated miles at Daytona. But IMSA rules limit the engine to about 600 hp with the use of 33.2mm restrictor plates fitted before each turbo. With such immense power and reliability, Ford realized this was the engine for the next GT supercar.