It is a development of the modular family. I believe the
block is similar to the 4.6L block introduced for use in
2002 Explorers. The three valve heads are the same as the
ones first used on 2004 F150 5.4L engines. The combination
of the 3 Valve heads and the aluminum 4.6L block were new to
the Mustang. The power output (300 Hp) is the same as the
5.4L in the F150s. The maximum torque is less.
Ted Johnson wrote:
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