Despite rising fuel-economy mandates from Washington, the horsepower race among Detroit 3 sporty cars is alive and well.
Ford is offering a 5.0-liter V-8 engine on the 2011 Mustang, up from a 4.6-liter V-8 now.
The new engine will deliver 412 hp and 390 pounds-feet of torque, company officials said. The 4.6-liter V-8 produces 315 hp and 325 pounds-feet of torque.
The 5.0-liter Mustang's main competitors are the Chevrolet Camaro SS, rated at 426 hp, and the Dodge Challenger SRT8, which makes 425 hp.
The Mustang's new V-8 features four valves per cylinder and twin independent variable valve timing. Tuned exhaust headers eliminate the need for aftermarket headers to let the engine breath better. Inside the engine are a forged-steel counterweighted crankshaft and high-performance pistons and connecting rods. Peak horsepower is reached at 6,500 rpm.
The new 5.0-liter Mustang can be fitted with an automatic transmission or a six-speed manual.
Meanwhile, Ford also will replace the base V-6 in the 2011 Mustang.
The old 4.0-liter V-6 will be replaced by a 3.7-liter, 305-hp, 24-valve V-6 with double overhead cams. It's the Mustang's first high-performance six-cylinder engine.
The old, rough, 210-hp V-6 -- which has been built in various displacements since the late 1960s -- couldn't compete with the 3.6-liter V-6 in the Camaro.
The base version of the 2011 Ford Mustang, which is scheduled to arrive in the spring, noses ahead of the 2010 Camaro V-6 -- but not by much. The Mustang has one more horsepower and one more highway mile per gallon than the Camaro.
The 2011 Mustang will make its official debut at the Detroit auto show in January.