All 2010 Chevy and GMC V8 Trucks Feature Variable Valve Timing
Green Car Congress
NOVEMBER 30, 2009
All 2010 Chevrolet and GMC V-8 powered trucks now feature variable valve timing (VVT), a technology that enables continuous control of valve opening and closing that result in better engine breathing, fewer emissions and improved fuel economy. When working with Active Fuel Management (cylinder deactivation) on the 5.3L
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