The new dual-overhead cam, four-valve V-8 diesel engine boasts a number of innovative design approaches that have enabled its compact size and mass, including integral aluminum cylinder head exhaust manifolds, integral cam cover intake manifolds and a narrow V-angle block. The engine also is lighter, an important consideration in the competitive light truck market, because it was designed with more than 70 fewer parts. General Motors Corp.'s revolutionary new 4.5L V-8 Duramax turbo-diesel, which makes its debut in Chevrolet Silverado and GMC Sierra light duty trucks in the 2010 model year, is compact, powerful and fuel-efficient. Low emissions, high performance and excellent fuel economy.Scheduled for GM pickup trucks under 8,500 pounds Gross Vehicle Weight.GM READYING V-8 DIESEL FOR 2010 MODEL YEAR NORTH AMERICAN LIGHT DUTY TRUCKS GMC Sierra half-ton pickups, no doubt for a sizable premium over their gas-powered counterparts. You'll be able to buy the new diesel in model year 2010 Another engineering coup for the 4.5L turbo-diesel is that GM has reduced its parts count thanks to a design that includes integrated aluminum cylinder head exhaust manifolds and an integral cam cover intake manifold. In order to help it meet Bin 5 and LEVĢ emissions standards as well as be 50-state legal, the engine will feature both a diesel particular filter and NOx after-treatment system that uses urea to knock out those pesky nitrogen-based particles.
GM says the 4.5L turbo-diesel will produce 310 horsepower and 520 pound-feet of torque, while bumpingįuel efficiency by 25%. GM can find a passenger car or two down the line that would benefit from the tons of torque this engine will produce. Large SUVs are surely going to get the engine as an option eventually, but maybe Thanks to a narrow-angle V block, the 4.5L turboĭiesel will fit in the same space as the General's small-block V8, which does give us hope for additional applications beyond just its half-ton General Motors revealed more details on its entrant: the 4.5L Duramax turbo-diesel V8. The battle of the diesel-powered half-tons is about to begin, and today
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