The all-new 6.7-liter Cummins High-Output Turbo Diesel is rated at 430 horsepower and 1,075 lb.-ft. of torque. A redesigned block and head, robust heavy-duty pistons, new performance intake manifold, ...

Chevy Chevelle may look like a show car, but it's also packing serious heat under the hood, coupled with some pricey upgrades.

These pickup trucks took advantage of turbochargers in diesels and modern downsized engines to provide decent fuel economy and high torque.