This truck is a custom came with 7. 3 idi. Which I removed. Engine in truck is 7. 3 international 444T. Which I then converted to ford powerstroke . Used 2001 ford f450 and 1995 ford super duty to build wiring harness and engine parts off the 450 to convert engine. Engine had 126000 when installed. thurk has none of fords emissions on engine so there is a power gain over the 2001 power rating. This engine has the bigger inj versus the older powerstrokes also truck has the inter cooler on engine . When installed it got new water pump hoses glow plugs. Computers that were used are ford computers so bully dog programmers can be used. Exhaust is straight exhaust no cats 3 inch off turbo then 4 inch to the stacks. Fuel tank in back is 70 gallons truck runs great selling because bought new truck may take partial trade. Truck is up for sale locally.