1968 Chevrolet C-10 Swb Project on 2040-cars

Auto blog

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 Colorado gets Midnight, Trail Boss editions

After introducing a gamut of special editions for the full-size Silverado, Chevrolet is offering a pair of new packages for its midsize Colorado. Following in the Silverado's footsteps, the Colorado Midnight Edition just blacks out all the things. There's a black grille, black Bowtie, and exclusive 18-inch wheels. They happen to be black, as well. In terms of functional changes, the Midnight Edition adds a spray-in bedliner, tonneau cover, and unique sill plates. Potential owners won't be limited on engine options and body styles here, as the blacked-out trim can be added to extended and crew cab bodies, in two- or four-wheel drive models, and with all of the pickup's available engines, including the upcoming Duramax diesel. The only limiting factor is the actual trim level – you'll need to settle for the mid-grade LT. Don't worry, though. The heftier, top-of-the-line Z71 will be offered with its own unique package, called the Trail Boss. As expected, it goes big on off-road character, with LED trail lighting and aggressive Goodyear Wrangler DuraTec tires. There are also black 17-inch wheels, newly flared fenders, side steps, and like the Midnight Edition, a blacked-out grille and spray-in bedliner. Also like the Midnight Edition, the only limit to adding the Trail Boss is that you opt for the Z71 trim. Engines, drivetrains, and body styles are not fixed. Look for both trucks at your local Chevrolet dealer this fall. Until then, scroll down for the official press release. 2016 Chevy Colorado Special Models Dressed to Impress Midnight Edition, Z71 Trail Boss complement capability with customized style 2015-08-03 DETROIT – On the street or on the trail, the 2016 Chevrolet Colorado's Midnight Edition and Z71 Trail Boss bring bolder choices to customers looking to make a visual statement with their truck. The special editions roll into Chevrolet dealerships this fall, with distinctly tailored appearances that blend custom design cues with Colorado's popular options and accessories. The Midnight Edition evokes the aesthetic of an urban tuner vehicle, while the Z71 Trail Boss is designed for terrain where the pavement ends. "These are aggressive editions of one of the country's hottest-selling truck, demonstrating the personalization that's possible with Chevrolet accessories, whether it's for the street, trail or both," said Tony Johnson, Colorado marketing manager.

GM's Ultium EV platform finally shows up in Q3 sales numbers

General Motors has heralded its Ultium battery-electric platform as the future of its passenger car and truck lineup, but for the first two years of its existence, its impact on the marketplace has been virtually nonexistent. Well, that finally changed in the third quarter of 2023, and while the cars based on this architecture don't represent anywhere near the volume of GM's broader combustion portfolio, we're reaching a point where Ultium products are finally in view (and in the hands) of real-world shoppers. At this point, five U.S.-market Ultium models are in production: the GMC Hummer EV, Cadillac Lyriq, Chevrolet Blazer & Silverado EV, and BrightDrop Zevo 600. If you're not familiar with that last one, that's OK; it's a commercial product that you likely won't see on the road for some time. Together, these four combined for 4,257 sales in the third quarter alone — up from 2,663 for the entire first half of the year. While that may not seem like a significant uptick when viewed from altitude, the quarter-to-quarter numbers paint a clearer picture.  Let's toss out the stragglers first. The Chevy Blazer EV, and Silverado EV for example, are barely in production. GM delivered 19 Blazers and 18 Silverados in the third quarter and that's the entirety of their production runs so far. Likewise, GM's BrightDrop Zevo 600 delivery van effectively exists apart from the consumer marketplace, so its contribution of just 35 units can be set aside too. That leaves us the two you've heard of: the GMC Hummer EV and Cadillac Lyriq — models with high sticker prices and long reservation queues.  Through the second quarter (remember, we're talking six months here), GMC sold 49 Hummer EVs. No typo. In the three months that made up the third quarter, GM moved 1,167 of them. Not only is that a dramatic improvement over the first half, but it's more Hummers than GMC sold in the entirety of 2022 (854). Lyriq's improvement was less eye-popping on paper, but after moving just 122 total units in 2022 and 2,013 of them in the first half of 2023, Cadillac managed to up that figure to 3,018 units in the third quarter alone.  GM is betting its short-term EV future on the Ultium platform, so these trends need to continue if that's going to be a profitable wager.