International Harvester IDI

The International Harvester IDI (from Indirect Injection) engine is a four-stroke diesel V8 engine used in International Harvester school buses, trucks, Ford F-Series pickups, and Ford E-Series vans from the 1983 to 1994 model years. The engine was built in two displacements: 420 cubic inches (6.9 L), which was used in Ford trucks from 1983 until 1987, and 444 cubic inches (7.3 L), which was used in Ford trucks from 1988 until 1994 (naturally aspirated) and in 1993 and 1994 (turbocharged).

International Harvester IDI

The International Harvester IDI (from Indirect Injection) engine is a four-stroke diesel V8 engine used in International Harvester school buses, trucks, Ford F-Series pickups, and Ford E-Series vans from the 1983 to 1994 model years. The engine was built in two displacements: 420 cubic inches (6.9 L), which was used in Ford trucks from 1983 until 1987, and 444 cubic inches (7.3 L), which was used in Ford trucks from 1988 until 1994 (naturally aspirated) and in 1993 and 1994 (turbocharged).