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Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

2015 Chevy Volt will be available with 4G LTE

General Motors teased consumers two years ago when it showed off a Chevrolet Volt decked out with 4G LTE connectivity. More details were finally unveiled this month at the Consumer Electronics Show in Las Vegas: the 2015 Chevy Volt will have a 4G LTE option and will offer consumers an as-yet-unpriced option with much faster wireless internet connection and more smartphone apps. GM's OnStar has teamed up with AT&T to come up with several mobile apps alongside the roadside assistance. The Volt joins the 2015 Corvette, Impala and Malibuz models that will debut with a 4G LTE option this year. The first four 4G ChevroLTE models will be released this summer and will be joined by the Spark (EV and gas versions), Equinox, Silverado and Silverado HD. GM has yet to announce whether any Cadillac or Buick models will get the 4G option. Chevrolet Accelerates to 4G LTE Speeds in 2014 Bowtie brand models in U.S. and Canada to get OnStar 4G LTE by summer LAS VEGAS – Starting this summer, Chevrolet will have some of the fastest vehicles on the roads, and that has nothing to do with horsepower. Chevrolet drivers will be enjoying high-speed data - made possible by a new OnStar 4G LTE connection in the vehicle, running on AT&T's network, the nation's fastest and most reliable 4G LTE network. Chevrolet today announced at the Consumer Electronics Show that the 2015 Chevrolet Corvette, Impala, Malibu, and Volt would be the first General Motors' vehicles to come optionally equipped with OnStar 4G LTE. They will be followed by the Equinox, Silverado, Silverado HD, Spark and Spark EV. In the Canadian market, OnStar with 4G LTE will be introduced on the Chevrolet Trax as well. The majority of the 2015 Chevrolet lineup in the U.S and Canada will have a 4G LTE connection built-in at vehicle launch. More models will be announced later this year. "Chevrolet is expected to implement the broadest deployment of 4G LTE in the automotive industry," said Alan Batey, senior vice president of Global Chevrolet. "The fact that OnStar with 4G LTE will be available in models that range from the Chevrolet Spark to the Silverado to the Corvette, is indicative of our broad commitment to deliver more value and convenience through smart technology applications.

2016 Chevy Camaro teased as current-gen car prepares to hit 500k sales

Just as Chevrolet prepares to launch the sixth-generation Camaro, the current, fifth-generation car is about to hit a major milestone: 500,000 units sold in the United States. That's impressive, and to celebrate, Chevy has released this video, showing the Camaro Z/28 doing what it does best around a race track. But that's not all there is to see in this video. At the end, Chevy gives us a glimpse at the sixth-generation Camaro, expected to debut in the not-too-distant future. Have a look, and check out Chevy's press blast, below, for more details about the 500k sales mark. Related Video: Fifth-gen Camaro Approaches 500,000 U.S. Sales Production milestone caps five years as America's best-selling performance car DETROIT – Talk about a big family: Chevrolet expects to deliver the 500,000th fifth-generation Camaro in the United States this month. The fifth-generation Camaro has been a runaway success for Chevrolet since it went on sale in August 2009. Camaro sales passed Mustang in 2010, to become America's best-selling performance car – a title Camaro has retained for five consecutive years. In the process, the Camaro has helped bring new buyers to Chevrolet – with 63 percent of retail buyers new to GM. "The fifth-generation Camaro has clearly resonated with both long-time Camaro fans, and first time performance-car buyers," said Todd Christensen, Camaro marketing manager. "That sets the bar high for the next chapter of the car's history." Remarkably, the Camaro continues to gain momentum, even as the fifth-generation Camaro nears the end of production this year. In 2014, Camaro total sales increased 7.1 percent for its second-best year of sales since its introduction.