1967 Chevrolet Malibu Base 4.6l on 2040-cars

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GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.

Are you the 2014 Corvette Grand Sport?

When are stripes more than just stripes? Follow up question: Is the product development team at Chevrolet really cocky enough to hide the next C7 Corvette variant in plain sight? This very recently spotted, and ostensibly obscured C7 asks a lot more questions than it answers, but there's at least some evidence to support that it might be the next Corvette Grand Sport.
The first and most obvious tip-off that something is up with this 'Vette revolves around those silver stripes. Obviously the stripes themselves don't necessarily denote a new model. However, when Chevy recently launched its "colorizer" website for the Stingray, there was no provision made for racing stripes - solid colors only.
Grand Sport exhibit number two is actually an incriminating lack of badges. The production Corvettes we've seen to date have all carried Stingray badges on their fenders, just behind the vent. The car seen in these images has no such badges, which is an intriguing omission on an car that looks like a production-spec vehicle otherwise.

Chevy finishes restoration of damaged 1 millionth Corvette

When a sinkhole at the National Corvette Museum devoured eight, rare examples of the iconic American sports car last year, some of the victims emerged better than others. While damaged, the 2009 Corvette ZR1 Blue Devil was able to drive out under its own power, making for a fairly straightforward restoration. Meanwhile, the one-millionth 'Vette came out looking like a pancake. Bringing the convertible back to perfection has taken four months and 1,200 man-hours, but the milestone car is finally on display again. After being a brief exhibit at the National Corvette Museum, the millionth 'Vette was moved to the General Motors Design Center. There, a 30-person team started on the difficult restoration. "When we disassembled it, we found that each employee involved in building it had signed a part of the car, which was fantastic and moving to see," said GM executive Mark Reuss. Therefore, the team tried to retain as many original parts as possible. The damage was extensive, and repairs included straightening the front sub-frame damage, patching the seats, and carefully restoring the dashboard pad to maintain the signatures below. The hood, front fascia, and side sills were replaced with parts from a donor vehicle. To keep the 'Vette perfect, the team scanned the names and put them on the new components. In one case, they even went back to an original employee to sign a replacement part. Surprisingly, the engine and transmission were fine. With the work done, the National Corvette's Museum's revived exhibit is nearly complete. Five of the other cars aren't being restored, and the museum is bringing the 1962 Corvette back to life. <p>Your browser does not support iframes.</p> Chevrolet Fulfills 1 Millionth Corvette Restoration Pledge Sinkhole-damaged milestone returns to National Corvette Museum 2015-09-03 BOWLING GREEN, Ky. – After more than four months and 1,200 man-hours of painstaking craftsmanship, restoration of the milestone 1 millionth Corvette – a white 1992 convertible – is complete. It was unveiled today at the National Corvette Museum, where it returns as part of the permanent exhibit. The car was damaged on Feb. 12, 2014, when it and seven other rare Corvettes tumbled into a sinkhole that opened beneath the museum's Skydome area. Chevrolet pledged to restore it.