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V-6 engine and class-exclusive eight-speed automatic. This second generation of Chevrolet’s double-overhead-cam engine architectu­re retains the same 3.6L displaceme­nt as before, with improved variable valve timing for intake and exhaust, improved direct injection and Active Fuel Management (cylinder deactivati­on), which disables two cylinders under light throttle applicatio­ns. Horsepower and torque increase to a 308 hp and 275 lb-ft.

The GM-developed Hydra-Matic 8L45 is roughly the same size and weight as the 6L80 six-speed automatic it replaces. However, the eight-speed automatic offers a wider 7.0 overall gear ratio spread giving a higher first gear ratio and lower rear axle ratios that reduce engine rpm on the highway for improved efficiency. The 2017 model year updates, including the new V-6 and eight-speed combinatio­n, will arrive at dealership­s this fall.

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