General Motors is preparing a significant power increase for its 2.7L TurboMax four-cylinder in the next generation of full-size pickups, positioning the engine as a centerpiece of the 2027 Chevy ...
GM’s four-cylinder TurboMax engine has proven to be a solid alternative to old-school V8s—and it’s about to get even better.
The next-generation Silverado and Sierra will get a notable boost in power and torque for the TurboMax turbocharged 2.7L I4 engine, GM Authority has learned.