2008 Gmc Sierra 3500 Crew Cab Duramax Diesel 4x4 B&w Gooseneck Hitch 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.

GM updating fullsize pickups for 2015

As Ford prepares to hit the market with its x-factor, aluminum-intensive F-150 and Ram sales stand tall enough to meet General Motors truck sales eye-to-eye, GM is putting the word out that it's going to add more features to its trucks and do so more regularly. An executive engineer for pickups told reporters that "a whole array" of changes are on the way as soon as the 2015 model year and then would likely come "the year after that, the year after that, the year after that."
Only GM knows the way it plans to go with its fullsize trucks, with almost everyone else - including its dealers - griping about market share at the same time as they applaud profits and hope for clarity and growth. GM raised prices on the Chevrolet Silverado and GMC Sierra not long after launch even as it was losing market share and getting called "the least successful large pickup launch over the last 15 years," further upsetting dealers, then Ram outsold the Silverado in March of this year and led GM to increase incentives. But transaction prices rose with the premium; in the first quarter of this year more than 37 percent of the trucks costing more than $40,000 were the Silverado and Sierra, leading one dealer to say of the Sierra, "You can't sell a cheap one," and the analyst who made that "least successful launch" comment to opine, "GM may have made the right call to go for price over share."
We won't know for a few months what any of these updates will be, but the rumored changes for the Silverado and Sierra appear to cover all the bases, including appearance, capability and fuel economy. Rumors run to higher gear counts, stop-start technology and diesel engines before brand-new pickups come for the 2019 model year, those next-generation models supposedly to be engineered with a lot more aluminum.

2022 GMC Terrain from $600 to $900 less expensive

The 2022 GMC Terrain is another one of those vehicles that, despite current economic trends, costs less than the 2021 model year — and GMC hasn't cut equipment as a way to justify the cuts. That doesn't mean there aren't any changes, though. The base SL trim level is gone, the SLE taking over at the entry-level point. Opting for AWD on the SLE and SLT trims adds $1,600 to the price, no change from 2021. Slotting into the lineup to maintain a four-trim range is the AT4 model that tilts at off-road use. The top shelf Terrain Denali no longer comes with front-wheel drive, either, AWD the only choice now. That makes the only Denali $700 more expensive than shoppers could pick up a 2021 Terrain Denali for; however, the AWD model is less expensive. Prices for the 2022 Terrain and the differences from 2021, after the $1,195 destination charge, are: SLE FWD: $30,290 ($600 less)  SLT FWD: $34,290 ($700 less) AT4 AWD: $36,390 (New model) DENALI AWD: $39,190 ($900 less) As part of the refresh for 2022, all Terrains get larger grilles, all-LED exterior lighting with larger headlights and new C-shaped taillights. Both the AT4 and Denali get unique grille designs, the former fitting a gunmetal grey design with thick slats, the latter an all-chrome matter with more delicate lattice-work between the slats. The AT4 also boasts a front skid plate for protection, plus chunkier tires. The Elevation trim returns, too, as a black-out appearance package for the more entry-level SLE and SLT trims. The interior is mostly unchanged except for a revised shifter panel — the buttons are new, but the same controversial design remains. There are new features available, though. Apple CarPlay and Android Auto are still standard, but now they're wireless. A head-up display is available as an option for SLT and AT4, while it comes standard on the Denali. The Denali also gets an 8-inch screen in the instrument panel. Only the turbocharged 1.5-liter four-cylinder and nine-speed automatic have been announced for the Terrain, making the same 170 horsepower and 203 pound-feet of torque as before. We're expecting a higher-horsepower, larger-displacement engine to be offered in the near future. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.