1995 Chevrolet K1500 Silverado Extended Cab Pickup 2-door 5.7l Z71 Off Road 4x4 on 2040-cars

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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.

Chevy Gives World Series MVP Madison Bumgarner A Recalled Truck

Last night must have seemed like a dream come true for San Francisco Giants pitcher Madison Bumgarner. He helped his team win its third World Series Championship in four years, earned MVP status and was given a brand new 2015 Chevrolet Colorado. Bumgarner might want to hold off on taking a victory lap in his new truck however. The Colorado is currently under recall. General Motors issued a stop-delivery order earlier this month to fix the truck's air bag connectors, which were wired improperly during the manufacturing process. The faulty wiring can cause the system to deploy incorrectly. Only 138 customers have received their Chevrolet trucks, the rest were caught and repaired either in the plant or on their way to dealerships and show rooms. Recalls Chevrolet world series

Recharge Wrap-up: Ford steals Best Green Brand spot from Toyota, EV buyer survey goes online

Chevrolet is one of the Top Global Green Brands of 2014, according to brand consultancy firm Interbrand. Chevy ranks number 32 on the list, which cover brands across a wide variety of segments. The report measures brand perception and brand performance, and the gap between the two is small for Chevrolet. "The company is not only actively demonstrating its environmental commitment," says Interbrand CEO Jez Frampton. "It's communicating those efforts in an authentic way that resonates with customers." Chevrolet cites its Spark EV, Volt and Cruze models as reason for its green cred. This is the first time Toyota didn't take the top spot. Being 32nd is good and all, but other automotive brands ranked much higher than the Bowtie. Ford, Toyota, Honda and Nissan took the top four spots in the report, respectively, with BMW, Volkswagen and Mercedes-Benz all besting Chevrolet. The big takeaway here is that Ford topped the list. In the Top Global Green Brand list's four-year history, this is the first time Toyota didn't take the top spot. Ford was second on the list last year, and 15th in 2012. "Ford embodies everything the business of the future must be: efficient, visionary, flexible, adept at problem-solving, cooperative, and focused on creating shared value," Interbrand says on its website. "From unveiling a first-of-its-kind solar-powered vehicle, the C-MAX Solar Energi Concept, to partnering with peers across sectors to do the seemingly impossible - like creating bio-plastic out of tomato fiber with Heinz-Ford is showing us what's possible." It bears mentioning that Ford's most recent MPG adjustments came after the study was conducted. Ford is also making the news for its 1.0-liter EcoBoost engine earning International Engine of the Year for the third straight year. Awarded Best Engine Under 1.0 Liter, the turbocharged three-cylinder motor earned high praise from judges. "This year's competition was the fiercest yet, but the 1.0-liter EcoBoost continues to stand out for all the right reasons – great refinement, surprising flexibility and excellent efficiency," said International Engine of the Year co-chairman Dean Slavnich. "The 1.0-liter EcoBoost engine is one of the finest examples of powertrain engineering." The 123-horsepower engine powers the Fiesta 1.0-liter EcoBoost, and will be available in a version of the Ford Focus in the US later this year. See more about the award in the press release, below.