The Ford SHO V8 engine (Super High Output) was designed and built by Ford Motor Company in conjunction with Yamaha Motor Corporation for use in the 1996 Ford Taurus SHO. It was based on the successful Ford Duratec engine rather than its predecessor, the compact Ford SHO V6 engine developed by Yamaha for the 1989 Taurus SHO. The engine was retired in 1999 when production of the third-generation Taurus SHO ended.