The Pentastar V6 features a high-pressure aluminum die-cast engine block with a 60-degree V angle. It uses an open deck design to save weight and reduce production costs. However, the cylinder liners are cast iron and quite sturdy. This, combined with piston-cooling oil jets, small piston skirt area, low-friction rings, and lightweight aluminum pistons, makes for a light, efficient, and durable design.
The Pentastar V6 has between 283 and 305 horsepower, depending on its model. With 90% of maximum torque achieved in the range of 1,800 to 6,350 RPM, its broad powerband ensures near-instant pickup and sustained, consistent power throughout the rev range.
Pentastar V6s from 2016 and newer, like those in the Jeep Grand Cherokee and Jeep Gladiator, saw a few upgrades compared to earlier variants. They have variable valve lift systems to increase fuel economy, a plastic intake manifold with longer runners, improved valve springs, and a higher compression ratio.
