Dodge Ups the Ante on Its Big Trucks With 6.7-Liter Turbodiesel Date posted: 09-29-2006 DALLAS — With General Motors and Ford making major announcements about their heavy-duty trucks this week, you know Dodge couldn't be far behind. The company announced on Thursday that a new 6.7-liter Cummins turbodiesel inline-6 engine, which replaces the current 325-horsepower 5.9-liter inline-6, will be available on the 2007 Dodge Ram 2500 and 3500. The new high-performance 408-cubic-inch intercooled engine produces 350 hp at 3000 rpm and 650 pound-feet of torque at 1500 rpm. The engine features a new six-speed automatic transmission that Dodge says delivers improved fuel economy and performance. The engine is approved for biodiesel fuel. The automaker said it was also offering an integrated exhaust brake in Dodge Ram Heavy Duty trucks for the first time. The exhaust brake is designed to improve control when towing heavy equipment such as pulling RV and horse trailers. What this means to you: The Dodge trucks get a boost in the horsepower department — count on Detroit to continue to play to its strengths.