Fastlane

October 25, 2012

New Small Block Corvette LT1 Engine Brings Big Gains in Performance and Fuel Economy

After an 18-year hiatus, the LT1 returns to the Corvette for 2014, matching an all-new car with a brand new Gen 5 engine – one of the most technically advanced engines in the world and the most…

After an 18-year hiatus, the LT1 returns to the Corvette for 2014, matching an all-new car with a brand new Gen 5 engine – one of the most technically advanced engines in the world and the most significant redesign of the Small Block ever. It will have the highest base horsepower and torque, as well as the greatest efficiency, of any Corvette in its 60-year history. The new Gen 5 LT1 is a racing-proven 6.2L V-8 delivering an estimated 450 horsepower and helping produce 0-60 times in less than four seconds. All this power won’t add cost at the pump, though, with the LT1 exceeding the 2013 EPA-estimated 26 miles per gallon on the highway.

“Our objective for the development of the all-new LT1 was to raise the bar for performance car engines,” said Mary Barra, senior vice president, 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.

“What makes this engine truly special is the advanced combustion system that extracts the full potential of these technologies. The art and science behind that combustion system make the Corvette LT1 one of the most advanced V-8 engines in the world,” said Barra.

In addition to the LT1’s innovative advanced combustion system, some additional features that play into the impressive performance and fuel economy are:

  • Active Fuel Management
  • Continuously variable valve timing
  • All-aluminum block and oil pan
  • Advanced oiling system, with available dry-sump system
  • New tri-lobe camshaft
  • New, cam-driven fuel pump
  • PCV-integrated rocker covers
  • Four-into-one exhaust manifolds

“The Holy Grail for developing a performance car is delivering greater performance and more power with greater fuel economy and that’s what we’ve achieved,” said Tadge Juechter, Corvette chief engineer. “By leveraging technology, we are able to get more out of every drop of gasoline and because of that, we expect the new Corvette will be the most fuel efficient 450 horsepower car on the market.”

LT1 Engine Comparisons

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