2008 Chevrolet Silverado 1500 Lt Standard Cab Pickup 2-door 5.3l 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 says hybrid Corvette no laughing matter [w/poll]

When Mark Reuss was in LA recently, he sat down to have a few words with the scribes at the Los Angeles Times. When the issue of a hybrid Corvette came up, Reuss answered with "Don't laugh." The General Motors president is a complete fan of the possibility, calling it "attractive" and "really fun," believing it would improve GM expertise and that "people would love it."
Naturally, the president being supportive of an idea doesn't give indication that a hybrid Corvette is on the way. However, with supercars like the Porsche 918 Spyder and Ferrari LaFerrari giving hybrid tech a solid, if remote, place in the performance car world, the inexorable trickle-down of technology means we shouldn't be surprised if and when it does happen.
And now that we have that non-negative half-answer to a speculative question, it would be irresponsible for us not to commence rumormilling for the C8 Corvette. Taking Reuss at his word, the C8 will obviously be a hybrid with all-wheel-drive - the left side wheels driven with electric motors, the right side with the mid-mounted, four-cylinder diesel engine. With coefficient of drag of just .16, figure on a 0-to-60 mile-per-hour time of under 2 seconds and an all-electric range of something like 30 miles at top speed. Don't forget, folks, you read it here first.

2014 Chevy Corvette Stingray order guide hits the web

The official debut of the 2014 Chevrolet Corvette Stingray is only part of the excitement for fans of Chevy's virtuoso sportscar. Although we got to see the car and some of its preliminary specs in Detroit and Geneva, there is still no word on pricing and some of the juicier data points we've been waiting for - such as confirmed power output, EPA estimated mileage figures and performance numbers. Until then, CorvetteBlogger has gotten its hands on the order guide for the coupe version of the car - in both base and Z51 iterations - revealing tidbits like standard and optional features and available color combinations.
Some other new details made it onto the order guide, such as our first interior specs for the coupe including slightly less hip room and headroom, more shoulder room and the same amount of legroom. To see the full order guide, head on over to CorvetteBlogger. From what we can gather, it sounds like more information will be revealed on April 25 during a party at the Corvette Museum, and for those sun worshipers patiently waiting for a convertible, it would appear you've got another model year to wait through.