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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
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