Here it is
Lurking under the hood of the 2006 Ford Harley-Davidson™ F-150 is a 5.4-liter, 3-valve Triton® V-8 featuring a specially tuned exhaust system that delivers a more powerful, throatier rumble. It turns out 300 horsepower at 5,000 rpm and 365 foot-pounds of torque at 3,750 rpm.
http://media.ford.com/article_display.cfm?article_id=19843&make_id=trust
Lurking under the hood of the 2006 Ford Harley-Davidson™ F-150 is a 5.4-liter, 3-valve Triton® V-8 featuring a specially tuned exhaust system that delivers a more powerful, throatier rumble. It turns out 300 horsepower at 5,000 rpm and 365 foot-pounds of torque at 3,750 rpm.
http://media.ford.com/article_display.cfm?article_id=19843&make_id=trust