GM’s Jeff Luke sheds some additional light on the company’s soon-to-be-released trucks.

For those of you looking to replace the aging truck in the driveway, had the opportunity to sit down with Jeff Luke, GM’s executive chief engineer for Silverado and Sierra, and ask him a few questions. They were able to dig up some very interesting tidbits about the soon-to-be-released truck twins.

While I won’t give you all the facts they were able to gleam from the conversation (they did the work so they deserve the web traffic), here are some highlights:

  • GM’s truck customers are first and foremost concerned with two things: power and fuel economy. To provide for these needs, GM will continue to explore drivetrain options, such as eight-speed transmissions and twin-turbo V6s, light-duty diesels.
  • Engineers did focus on weight savings as much as possible. However, other competing requirements meant there’s more safety equipment and performance features packed into the new hauler, making it hard to compare the weight of the new truck with the old one. Luke did say a similarly equipped F-150 would be about 200lbs heavier.
  • Z71, Denali, and All Terrain packages will go beyond the traditional sticker option checkbox on the order sheet, providing more engineering and improvements to customers. Luke did fall short of saying they would take on the Ford Raptor.

All this comes after GM released fuel economy numbers for the EcoTec3 5.3L V8. The new motor is expected to deliver 10.2L/100km in 2WD configurations and 10.7L/100km for 4×4 models. It will produce an estimated 355 hp and 383 lb-ft of torque.

GM says this new motor will get better fuel economy than Ford’s EcoBoost V6 engines. But, with the force inducted Ford mill making more power and torque (365 hp and 420 lb-ft), it is easy to see why.

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