International Truck and Engine Corp. has introduced a new family of in-line six-cylinder engines for 2004 International 4000 and 7000 series and 8500 trucks.

The new engines promise improved performance, durability and advanced diesel technology.

Features include:

• An EVRT® turbocharger, which allows better breathing with the use of adjustable vanes within the turbo.
  
• Cooled EGR, which reduces EPA-regulated NOx emissions.
  
• The International electro-hydraulic generation 2 (G2) fuel system offers more precise timing control for optimized fuel delivery. The G2 injectors are designed to be much smaller than previous injectors, allowing enough room to accommodate four valves per cylinder. The 24-valve design allows a more complex mix of fuel and air, giving the engine the capability to run with more power and better combustion, according to International.
  
• A single piece, high-pressure oil rail, which virtually eliminates the potential for leaks and increases serviceability.
  
• A new, longer-lasting cast iron high-pressure oil pump provides variable displacement and oil flow in response to engine speed and load.
  
• The engines also feature a corrosion resistant, powder-coated, dual drain oil pan that protects against road salt.
  
• Redesign of the seal carrier area and fly wheel housing, to virtually eliminate rear crank seal leaks.
  
• New pad-mounted accessories are easier to remove and service than the previous bracket-mount arrangement.
  
• New International Diamond Logic™ engine brake offers enhanced braking power. The low, medium and high valve positions operate on all six cylinders, for even cylinder wear.

International's new DT 466, DT 570 and HT 570

Engine Type: Diesel 4-cycle
Configuration: In-line 6-cylinder
Displacement: 466 cubic inches (7.6 liters) and 570 cubic inches (9.3 liters)
Bore and Stroke: 5.49 inches by 4.86 inches
Compression Ratio: 16.1:1
Aspiration: EVRT® Electronically Controlled Turbocharger, Air-to-Air Intercooled
Horsepower Range: 210-340 hp
Torque Range: 520-1,150 pounds-feet