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New GM EcoTec3 engine family for 2014 Silverado and Sierra pickups; direct injection, cylinder deactivation and CVVT

Green Car Congress

SAE-certified horsepower and torque ratings and EPA fuel economy estimates for the new Silverado and Sierra will be available beginning early next year. —Jordan Lee, Small Block chief engineer and program manager. A structural aluminum oil pan further stiffens the bottom of the block. Advanced oiling system.

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New 450hp Small Block V8 for 2014 Corvette features direct injection, cylinder deactivation, continuously variable valve timing

Green Car Congress

It will also deliver the most fuel-efficient Corvette ever, exceeding an EPA-estimated 26 mpg US (9.0 All-aluminum block and oil pan. A structural aluminum oil pan further stiffens the powertrain. It also incorporates new engine mount attachments, new knock sensor locations, improved sealing and oil-spray piston cooling.

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