The 2014 model year brings the most significant re-design of the Small Block’s nearly 60-year history – building on its legacy to make one of the world’s best engines even better. GM engineers spent over 10 million hours creating the Next Gen technology. The Gen 5 Small Block family includes, the EcoTec3 truck engines, a 6.2L and 5.3L V-8, as well as a vastly improved 4.3L V-6 and the 6.2L LT1 engine in the all new Chevrolet Corvette. Every millimeter of the combustion system was carefully designed to support the most ideal combination of direct injection, active fuel management and variable valve timing, making the most of power, torque and efficiency.
Also in 2014, the new 3.6L Twin-Turbo V-6 – used exclusively in the 2014 Cadillac CTS VSport and XTS – is the most power-dense six-cylinder engine in the midsize luxury segment – is the most powerful V-6 ever from General Motors. It is rated at an SAE-certified 420 horsepower (313 kW) and 430 lb.-ft. of torque (583 Nm) in the CTS VSport and 410 horsepower (306 kW) in the XTS. A pair of smaller turbochargers and an efficient charge air cooler help provide more immediate power delivery. Additionally, approximately 90 percent of the 3.6L Twin-Turbo’s peak torque is available from 2,500 rpm to 5,500 rpm, giving the engine a broad torque curve that drivers feel as strong, willing power in almost all driving conditions.