The partnership was formed in May 2007 as a cooperation between Dale Earnhardt, Inc. and Richard Childress Racing to develop and build common engines for the Chevrolet NASCAR Cup Series and Xfinity Series teams campaigned by the two companies. The partnership was inherited in 2008 by Earnhardt Ganassi Racing, following the merger between DEI and Chip Ganassi Racing. At the time, the Nationwide Series (now Xfinity Series) and Truck Series engine departments were located at the DEI facility in Mooresville. The company is now known as ECR Engines, no longer connected with DEI or CGR. In 2016, the company became a wholly owned subsidiary of RCR.