A deeper look at the small-block heart of the next Corvette

If it’s never been said before that the cornerstone to General Motors performance is the small block V8, well, it ought to be on a factory plaque somewhere. And maybe some t-shirts. We can start printing up the latter right now: The General’s evergreen performance linchpin is getting a 21st-century makeover in the form of this all-new 6.2-liter LT1. Revealed this morning at GM’s Powertrain Development Center in Pontiac, Michigan, the new small block will be at the heart of the 2014 C7 Chevrolet Corvette, and variants are also expected to find their way into other GM vehicles in short order, including the automakers’ full-size Chevrolet Silverado and GMC Sierra pickups (which are also on schedule for new 2014 models). We revealed the key specs as the press conference unfurled this morning: a minimum of 450 horsepower and 450 pound-feet of torque, 0-60 in under four seconds for the base Corvette and at least 27 miles per gallon. Critically, despite being a large displacement engine, the fifth-generation small block stays true to its roots with a compact footprint – GM claims the engine is four inches lower and more compact overall than BMW’s 4.4-liter twin-turbo V8, yet it weighs 40 pounds less. Important new technologies include direct injection and continuously variable valve timing, along with Active Fuel Management (read: cylinder deactivation), a functionality that GM tried to input on the last Corvette (officials admitted they had to scuttle the tech due to refinement issues, but those problems have been solved now). All that new hardware means that the LT1 is actually slightly heavier than the outgoing LS3 V8, but it’s still very lightweight. Traditionalists will appreciate that the cam-in-block pushrod engine keeps the bore spacing and block length of its predecessors, but make no mistake, this is an all-new engine – the sum total of the carryover parts fit comfortably inside a small Ziplock baggie. Read more
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This Is What The 2014 Corvette’s 450-Horsepower V8 Sounds Like

The engine, which shares its name with the LT1 that powered the Corvette in the early 1990s, has preliminary figures that place it at 450 horsepower and 450 pound feet of torque. Fuel cut off is at 6,600 RPM, and for the nerds among you that want to geek out at little details, the cylinders fire in the following order: 1, 8, 7, 2, 6, 5, 4, 3. Take a quick listen to the new Heartbeat of America above. Source: Jalopnik
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GM High-Tech Performance Gen5 LT1 Small Block engine build

The next generation Corvette engine is the Gen V LT1, which is a direct injected V8. There was a ton of speculation about the displacement, with early reports placing it at 5.5 liters, like the C6R race car. This morning, GM has confirmed that the LT1 will be a 6.2 liter engine. It also gets some advanced tech. The LT1 has cylinder deactivation to increase fuel mileage, which is reportedly more than 26 MPG on the highway, direct injection, dry sump lubrication (which will be an optional extra), and variable valve timing. While more efficient, the LT1 is also expected to provide a nice power increase over the current LS3. With at least 450 horsepower and 450 pound feet of torque, the LT1 is up 20 horsepower and 26 pound feet of torque. It actually has a slightly better power curve than the might LS7 that currently powers the Corvette Z06. Read more
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