Thought you might like to take a gander at the 3.5 Ecoboost engines that powered Michael Shank Racing and Chip Gannassii Racing's Daytona Prototype cars last weekend, in the Rolex 24 Hours of Daytona.

These were jointly developed by Ford Racing and Roush/Yates Engines for use in the Daytona Prototype cars in the new IMSA Tudor United Sportscar Racing series.

They use about 70% of the stock components that go into the Ecoboost engines in the F 150 and Taurus SHO.