General Motors has launched its 2011 Chevrolet Silverado HD and GMC Sierra HD with aims of winning the heavy-duty power battle. ENR accepted GM’s invitation to test and compare its re-engineered trucks against the competition, namely the 2011 Ford Super Duty that we reviewed in the spring. Nuts and Bolts GM has beefed up the two available powertrains in its 2011 offerings to handle heavier loads. Starting things off is the 6.0-liter V-8, good for 360 horsepower and 380 lb-ft of torque. Impressive, but GM’s Duramax turbodiesel—a 6.6-liter V-8— delivers 397 horsepower and 765 lb-ft of torque, and packs a
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.