Ford Racing 2020+ F-250 7.3L OE Timing Chain SetFord Racing's timing chain sets are available for a variety of the company's performance engines. They include rugged, double row roller chains for excellent performance and reliability. They also feature crank sprockets with nine keyways, which give you nine choices for cam timing stock, plus four each advanced and retarded settings. Most sprockets are cast iron; however, some sets have steel cam sprockets for extra strength. This Part Fits: Year