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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.

10 electric cars we’re excited are coming soon

If you were considering buying an electric vehicle a couple years ago, we wouldn't fault you for thinking your options were limited, both in terms of quantity and quality. You just might not have been able to find an electric car that would suit your needs, lifestyle or budget. With the newest generation of EVs that have launched in the past year or two, your options have changed — and improved — dramatically. If you still don't see an EV you like, just wait a little while longer. It won't take long. There are a whole lot more on the horizon, and the problem may soon be in narrowing down your options. To give you an example, here are 10 electric vehicles we're excited about that you'll be able to buy very soon, from GM, from Germany, from Japan and more. Some of these will be available by the end of the year, and all are expected to launch by the end of 2023. The Chevy trio: 2024 Blazer EV, Equinox EV and Silverado EV GM is stepping into the future with strong footing. Following high-end electric launches from GMC (Hummer EV) and Cadillac (Lyriq), Chevrolet is bringing three electric vehicles with familiar nameplates. The 2024 Chevy Blazer EV (above left) will offer a number of versions, starting with the 2LT and RS trims in the summer of 2023, followed by the 557-horsepower SS in the fall and the base 1LT in early 2024. The 2024 Chevy Equinox EV (above right) will go on sale in fall 2023 as a limited-edition model, with volume sales ramping up in 2024, with a base cost of “around $30,000.” For those who prefer a bed to a liftgate, the 2024 Chevy Silverado EV is an electric pickup that looks more like the old Chevy Avalanche than the current Silverado. The WT (work truck) trim launches in fall 2023, while the 664-horsepower RST will follow in 2024. Read more: 5 new electric car companies coming in 2023 and beyond 2023 BMW i7 BMW revealed the all-electric 2023 i7 luxury sedan alongside the gas-powered 7 Series. It should go on sale before the end of 2022. The i7 xDrive60 will be the only variant, with its two motors providing a total of 536 horsepower and 549 pound-feet of torque, and its battery expected to offer a range of about 300 miles. Just like its internal combustion counterpart, this full-size sedan wonÂ’t come cheap, with the i7 starting at $120,295. 2023 Hyundai Ioniq 6 Following the Hyundai Ioniq 5, Kia EV6 and Genesis GV60, the 2023 Hyundai Ioniq 6 will be the fourth car using Hyundai GroupÂ’s E-GMP electric car architecture.

The real costs of keeping a Chevy Volt on the road

The release of the new, 2016 Chevy Volt is sure to bring a surge of used electric vehicles to the market as early adopters trade their older models in. Many of these cars are selling for a fraction of their original price, thanks in part to federal and state incentives that lowered the initial cost to the first owner, which opens these cars up to a whole new class of consumers. While the prices are getting attractive, potential buyers are still hesitant to buy a used EV due to uncertainty about service and repair costs, but there may be some good news on the horizon. The Chevy Volt comes with a battery warranty that is good for at least 8 years and 100,000 miles, but many of the Volts popping up on the market have passed that 100,000-mile mark. The threat of needing a new battery can be a deterrent, especially with some dealers quoting prices as high as $34,000 for a full "drive motor battery replacement." That sum is more than the MSRP of a 2016 model. Some of the fear of EV maintenance and repair comes from the mystery of the individual pieces that make up the drivetrain and charging system. If we take a look at the Volt in terms of analogs to a traditional internal-combustion vehicle, the outlook becomes a little more friendly. The Volt battery pack consists of three lithium-ion modules in a T-shaped arrangement, each of which can be serviced individually. Module 1 is made up of 90 cells and corresponds to GM part number 22954462, which retails for $3,258.33; module 2 is made up of 72 cells and corresponds to GM part number 22954463, which retails for $2,930.00; lastly, module 3 is made up of 125 cells and corresponds to GM part number 22954464, and retails for $4,933.33. These part numbers have been added to the dealer order systems but have not shown up in the distribution centers at this time. Although all three of the modules add up to a fairly large $11,121.66 total and are still on hold for dealer ordering, the good news is that in most cases these battery cell modules do not need to be replaced. There are many other individual pieces mounted on the battery pack that are serviceable, such as the Battery Energy Control Modules (BECM) and the Battery Interface Control Modules (BICM). These modules control and monitor the battery packs and charging system and have been known to fail while the lithium-ion battery cells are not at fault. Some have been replaced under warranty, but if you are stuck buying one they run about $255 a piece for the part.