New EcoTec3 Engine Continues GMC V-6
When the all-new 2014
GMC Sierra full-size pickup arrives this summer, its standard 4.3L EcoTec V-6 will offer the most torque of any standard V-6 in the segment – 305 lb-ft (413Nm). Buyers can choose from three advanced EcoTec3 engines – a 5.3L (available at launch), followed by the 4.3L and 6.2L versions (available later this year). All are designed specifically for the high trailering and hauling demands unique to truck buyers. Sierras equipped with the 4.3L EcoTec3 V-6 will have trailering ratings up to 7,200 pounds (3,266 kg) for a regular cab, short bed, four-wheel-drive model – 500 pounds more than the most capable FordF-150 3.7L and 700 pounds more than a Ram 1500 3.6L. Sierra’s standard V-6 produces an SAE-certified 285 horsepower (212 kW) and is matched with a proven, efficient six-speed automatic transmission. Like Sierra’s optional 5.3Land 6.2L EcoTec3 V-8 engines, the new V-6 features three state-of-the-art technologies – direct injection, active fuel management (cylinder deactivation) and continuously variable valve timing.