ECR Engines is a high-performance engine production, research and development company at the Richard Childress Racing facility in Welcome, North Carolina. 

ECR provides engines for NASCAR teams such as Richard Childress Racing, Richard Petty Motorsports, Germain Racing, Leavine Family Racing, JTG Daugherty Racing and others.

ECR also produces engines used in all of the Cadillac DPi-V.R. Daytona Prototypes which compete in the IMSA WeatherTech SportsCar Championship Series, as well as for teams in the ARCA Racing Series, SCCA, dirt and asphalt short tracks and sprint car racing.

ECR Engines have earned more than 200 victories, including two Brickyard 400 wins, four Daytona 500 championships and championships in the NASCAR XFINITY Series, Rolex 24 Hours at Daytona and the 12 Hours at Sebring in the IMSA WeatherTech Series, NASCAR Camping World Truck Series, and ARCA Racing Series.