Enhance the performance of your Ford with these Valve Spring Retainers. These NOS retainers are specifically designed for the 400CID engine model produced between 1978-1982. The product is manufactured in the United States and is compatible with Ford vehicles. [BEGIN] Make your engine run like new with these Ford Valve Spring Retainers. These retainers are designed to fit Ford models and are a great addition to any car enthusiast's collection. Grab these NOS retainers while they last and improve the performance of your Ford today.