According to Detroit News, Ford will be fitting its upcoming large displacement 6.2-liter V-8 to a greater variety of 2011 F-150s than originally planned. Their spy pic reveals twin pipes supposedly unique to this new engine; not known is whether this is a true dual exhaust setup or simply twin exit pipes connected to a single pipe aft of the exhaust manifolds and catalytic converter.
The new engine is now rumored to be slated for models beyond limited-edition trucks like the off-road 2010 F-150 SVT Raptor such as this crew cab model.
2011 Ford F-150 exhaust
The engine will retain Ford's overhead camshaft arrangement, a design Ford adopted in the 90s in search of increased efficiency and refinement. The new 6.2-liter V-8, at approximately 400 hp and 400 lb-ft torque, should finally give the rather heavy F-150 the grunt it's been lacking to compete with similarly-sized units at GM and Chrysler. Chrysler uses overhead camshafts for its 4.7-liter V-8, the mid-level engine in its Dodge Ram, but pushrods for its successful HEMI V-8. GM relies solely on pushrods for its truck V-8s fitted to Chevy Silverados and GMC Sierras; they've stretched the tried-and-true design to new heights of efficiency and performance with items like roller rocker arms and variable-valve timing.
[source: Detroit News]