The Ford 390 block is a 6.4-liter (390.04ci) gasoline big block V8 engine produced by Ford from 1961 to 1976. It is part of the Ford-Edsel (FE) engine family and is known for its high output and performance. The 390 engine was used in various Ford vehicles, including the Thunderbird and Mustang, and was available in different horsepower ratings throughout its production. The engine is characterized by its bore of 4.05 inches and stroke of 3.780 inches, making it a popular choice for performance enthusiasts today
