But it turns out Chevy had one other engine up its sleeve: a turbocharged four-cylinder. Displacing just 2.7 liters ... the effectively carried-over 4.3-liter naturally aspirated V6.

The turbocharged 2.7-liter four-cylinder engine is about half the size of its big brother — GM's stalwart 5.3-liter V8 — but it can cover much of the same ground. With increased torque for ...