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Bigger engines for GM light-duties in '07

Published Tuesday, August 01, 2006

General Motors' Chevrolet Colorado and GMC Canyon pickups, as well as the Hummer H3 SUV, will get new, larger-displacement inline 4- and 5-cyl. engines in 2007. The Vortec 2.9L DOHC 4-cyl. with variable valve timing (VVT) delivers 185 hp. and 190 lb.-ft. of torque; it replaces the 2.8L 4-cyl. The Vortec 3.7L DOHC 5-cyl. with VVT is rated at 242 hp., 242 lb.-ft. of torque; it replaces the 3.5L. The 2.9L engine produces 6% more horsepower and 3% more torque than the model it replaces, while the 3.7L generates 22 more horsepower and 17-lb.-ft. of additional torque than ...

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