The superior performance of the ISB comes from a constant flow of high-pressure fuel, injected with precise timing for optimum burn efficiency. Regardless of engine speed, the pressure inside the common-rail fuel system does not fluctuate. An increased number of injection events per cycle results in an ISB that runs stronger and quieter than ever before, with more horsepower and torque on the road than any other engine in its class.

Specifications.

Advertised Horsepower 325 hp 242 kW
Peak Torque 750 lb-ft 705-1117 N•m
Governed Speed 2600 rpm
Clutch Engagement Torque 350 lb-ft 475 N•m
Number of Cylinders 6
Oil System Capacity 4.5 U.S. gallons 17.03 liters
System Weight 1,190 lb 540 kg
Engine (Dry) 1,150 lb 522 kg
Aftertreatment* 40 lb 18 kg


*Increase over today's muffler

Displacement Increased to 6.7 Liters - 13% increase in displacement (from 5.9 to 6.7 liters) for increased power, performance and productivity.
Lowest Cost of Ownership - Low maintenance, high mpg, proven reliability and durability add up to superior lifetime value.
Low Noise Levels - Maintains industry leadership for quietest operation for increased driver comfort and safety.
Enhanced High Pressure Common Rail Fuel System - Delivers optimum balance of performance, emissions control and fuel economy across the entire operating range.
Full-Authority Electronic Controls - Higher microprocessor capacity and speed for optimum control of the engine and aftertreatment.
Cooled Exhaust Gas Recirculation - Lowers combustion temperatures for reduced emissions and optimized mpg.
Variable Geometry Turbocharger - Enhanced response and control with electric actuation for an infinite adjustment, providing exact boost across the operating range. Sliding-nozzle design increases reliability, durability.
Cummins Particulate Filter - Fully integrated for uncompromising performance, reliability. Reduces particulate matter 90%.
Crankcase Ventilation System - Fleetguard® Enviroguard™ coalescing filter only needs replacement every 3rd to 4th oil change.
Low Maintenance - Long oil change intervals maintained. Cummins Particulate Filter will go 200,000-400,000 miles (320,000-640,000 km) in a typical duty cycle in most vehicles before it needs cleaning.


and it will be out on the 07 model year trucks includding the 2500/3500 non-chassis cab trucks

 

the things that are going to push people away is #1, all the emissions crap that is on this engine, #2 EGR, #3 only 325 HP to start out with.

now I know it is looking at 750lb-ft but the HP number does need to be a little higher since the chebby LLY duramax is at 360hp and 650 lb-ft.