This is a heady title: highest specific output of a General Motors production engine. (autoweek.com)
This turbocharging concept with systematic cylinder flow separation produces high torque in the low rpm range together with high specific output. (emercedesbenz.com)
of torque * (353 Nm) at 2500 rpm, making it GM's highest specific output engine ever at 2.1 horsepower per cubic inch of displacement (130 hp / 97 kw per liter) and the most powerful engine in the Ecotec family. (speedsportlife.com)