• The 2011 Super Duty with the all-new Ford 6.2-liter V-8 engine will deliver significantly improved torque and horsepower as well as class-leading fuel economy; it can run on regular-grade gasoline, E85 or any blend in between
• Optimization of the engine’s “breathing” delivers increased horsepower compared with outgoing F-250/F-350 6.8-liter engine
• Base engine performing flawlessly in Ford F-150 SVT Rapor R off-road racing truck, complementing rigorous testing regimen

DALLAS, Sept. 24, 2009 – An all-new 6.2-liter V-8 gasoline engine, which has its roots in Ford Racing powerplants, joins the lineup for the 2011 Ford F-Series Super Duty.

“Our all-new 6.2-liter V-8 engine uses reliable components and proven technology that has been optimized for the high performance and efficiency that our Super Duty customers demand,” said Mike Harrison, Ford V-8 engine programs manager. “It delivers not only significantly better torque and horsepower than the outgoing engine, but also improved fuel economy.”

Core to the improvements is the adoption of an all-new engine architecture, with increased bore spacing, that allows better engine “breathing” in both the intake and exhaust for more power and more overall efficiency.

A closer look at how the new engine achieves its performance:

• Large bore, shorter stroke: This approach to creating power has its roots in storied Ford racing engines from the past. The large bore (102 mm) allows for larger intake and exhaust valves for improved engine breathing, and the short stroke (95 mm) allows higher engine speed for increased horsepower. Still, peak horsepower is generated at a relatively modest 5,500 rpm.

• SOHC valvetrain with roller-rocker shafts: The single overhead camshaft (SOHC) per cylinder head design results in a stiff valvetrain that allows optimized camshaft lift profiles and helps produce great low-speed torque. The roller-rocker shafts allow valve angles to be splayed, resulting in optimized intake and exhaust port layout for better breathing.

• Dual-equal variable cam timing: Intake and exhaust valve opening and closing events are phased at the same time to optimize fuel economy and performance throughout the engine speed range and throttle positions.

• Two spark plugs per cylinder: Because of the large bore size, two spark plugs per cylinder are used to more efficiently burn the fuel-air mixture in the combustion chamber, enabling better fuel economy and increased engine torque. The twin plugs also help the engine maintain a smooth, stable idle.

• Dual knock sensors: A knock sensor on each bank of cylinders of the V-8 engine allows the spark timing of each of the cylinders to be individually optimized real time, throughout the engine speed range. The engine continuously monitors engine performance and applies this real-time learning to optimize timing via an adaptive algorithm.

• Better engine crankcase “breathing” and efficiency: Significant development work and computer-aided engineering optimized the cylinder block for more efficient airflow in the crankcase as the pistons move up and down in the bores, resulting in improved torque at higher engine speeds. Piston-cooling jets squirt oil on the underside of the pistons to keep the piston crowns cool under extreme operating conditions. The cooling jets also allow for a higher compression ratio for better engine efficiency and faster engine oil warm-up on cold starts, also improving fuel economy.

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