The 2012 Ford F-150 has ( 4 ) engine choices from the factory :
3.7 liter V6
3.5 liter EcoBoost V6 ( twin turbochargers )
5.0 liter V8
6.2 liter V8
The last model year in a Ford F-150 for the 5.4 liter V8 engine was 2010
300 horsepower
I believe that is 248 horsepower
I believe the 4.6 liter V8 engine in a 2003 Ford F-150 is rated at ( 231 horsepower )
I believe the 2004 is rated at 300 horsepower
In a 2005 Ford F-150 : The 4.6 liter V8 engine is rated at ( 231 horsepower ) from the factory
The 1999 F150 4.6 L is rated at 220 H.P. at 4500 RPM and 290 lb/ft torque at 3250 RPM
360 horsepower
231hp.
2000 F150 v6 4.2L has 205HP
202 hp
210 horsepower at 4400 RPM and 290 Ft/Lbs torque at 3250 RPM
I believe that is 260 horsepower