Chevrolet has released a deluge of information about the 2014 Corvette’s fifth-generation small block V8 - the LT1. Despite displacing the same 6.2 liters as the outgoing LS3 mill, the LT1 is 99.9 percent new and packed with significantly more power and technology than its predecessor.
The new small block churns out 450 horsepower at 6000 rpm and 450 lb-ft of torque at 4000 rpm, improvements of 20 ponies and 26 lb-ft over the LS3. Chevrolet says that output is enough to empower the C7 Corvette to sprint from zero-to-60 mph in under 4.0 seconds, and with over 400 lb-ft of twist on tap between 2,000 and 4,000 rpm, the LT1 also provides plenty of mid-range output.
Though it retains the tried-and-true pushrod configuration, the LT1 features direct-injection, variable valve timing and a fairly high 11.5:1 compression ratio. A dry sump oil system will be an optional extra in place of a standard wet sump unit.
Also part of the LT1 package is a cylinder deactivation system that saves fuel by effectively turning the 6.2-liter V8 into a 3.1-liter V4. Chevrolet says the system will help the LT1 better the less-powerful LS3's 26-mpg highway rating.
“Our objective for the development of the all-new LT1 was to raise the bar for performance car engines,” said Mary Barra, GM's senior vice president of global product development. “We feel that we have achieved that by delivering a true technological masterpiece that seamlessly integrates a suite of advanced technologies that can only be found on a handful of engines in the world."
For a preview of the sheetmetal of the next-generation Corvette, which will debut in January at the Detroit show, check out Leftlane’s spy photos.