2009 Ford F-150 5.4-Liter V8 Power Ratings Unofficially Revealed
By: Mike Levine Posted: 05-16-08 01:51 PT
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Update #1: 05-18-08 20:33 PT

A source has come forward with additional details about power ratings for 5.4-L 3-valve V8 equipped 2009 Ford F-150s. The ratings vary, whether the truck is fueled with regular gasoline or E85 (85% ethanol / 15% gasoline).

- 320hp and 390 lb-ft (running on E85)
- 310hp and 365 lb-ft (running on gasoline)

Let's just say another person with a camera phone has revealed news that Ford has yet to officially confirm, on the forums of our good friends at Ford-Trucks.com. Last time it was the upcoming 4.4-liter diesel V8 destined for the 2010.5 F-150 and Super Duty, this time it's the power ratings for the freshened 5.4-liter V8 that will sit under the hood of the new 2009 F-150.

A Ford dealer attending training for the new half-ton snapped a picture of an information placard (below) that reveals the six-speed automatic 5.4-L V8 will achieve 320-horsepower at 5,200-rpm and 390 lb-ft of torque at 3,500-rpm. The new numbers are a modest improvement over the 2008 Ford F-150's 300-hp at 5,000-rpm / 365 lb-ft at 3,750-rpm.

The 5.4-L V8 uses Ford's new 'open valve injection' technology. As the name suggests, open valve injection injects fuel into the cylinders while the intake valves are open (instead of closed like during conventional combustion cycles). The incoming air improves the mixture of air and fuel before the 'charge' is ignited. Ford says the result is increased horsepower during towing, higher RPMs, and an improvement in emissions from the more efficient burn.