DETROIT – The 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 will deliver more power, more torque and improved fuel efficiency, thanks in part to a trio of all-new EcoTec3 engines designed specifically for the needs of full-size truck customers.

The new engine family includes a 4.3L V6, a 5.3L V-8 and a 6.2L V-8.

EcoTec3 engines feature three state-of-the-art technologies – direct injection, cylinder deactivation and continuously variable valve timing – to make the most of power, torque and efficiency across a broad range of operating conditions.

“We believe these are the most technologically advanced engines ever offered in light-duty pickups, and they are 100 percent truck – specifically designed for the way customers use trucks in the real world,” said Jordan Lee, Small Block chief engineer and program manager.

“They have all the power and torque needed to confidently handle the tough jobs, and they seamlessly switch to four-cylinder mode to increase efficiency during light-load driving.

“This is technology no other truck maker can match, and we offer it in every one of our EcoTec3 engines, for every one of our customers,” said Lee. “It is not an extra cost feature. You get our best and most sophisticated technology regardless of trim level.”

Although they share only a handful of parts with previous Chevrolet and GMC engines, the new EcoTec3 engines build on experience gained from millions of trucks and billions of real-world customer miles, while incorporating the latest in advanced materials and combustion systems.

“The combination of straightforward mechanical systems, the latest in materials, and an advanced combustion system enable us to improve power and efficiency, while also reducing noise and vibration,” said Lee. “We think truck customers will find our new engines to be the right tools for the toughest jobs, while helping hold down ownership costs over the long run.”

A family of three all-new engines
The EcoTec3 lineup for the 2014 Silverado and Sierra 1500 includes a 4.3L V-6 and 5.3L and 6.2L V-8s, all matched with proven, efficient six-speed transmissions in the United States and Canada.

The new 4.3L V-6 will offer budget-conscious customers a state-of-the art truck engine, with ample torque to power a crew cab and tow a trailer.

The new 5.3L V-8 is engineered for more horsepower, more torque and better fuel economy than the current 5.3L V-8.

The new 6.2L V-8 is expected to be the most capable engine offered in any light-duty pickup truck.

SAE certified horsepower and torque ratings and EPA fuel economy estimates for the new Silverado and Sierra will be available beginning early next year.

Continued in the link