Mustang MPH?

[Superfan1]

Originally Posted by FED 387

Just got my copy of Road & track magazine(april 09)--page 41 said that the 2010 mustang shelby will be a 540 HP engine up a "little" from the 09---not sure how this enters into this argument--but there are some numbers that are interesting---they talk about KR and GT500 engines and Im not a Ford guy so maybe--somebody can explain it---Comp 387

I believe that the Shelby GT500KR engine was available beginning in 2008; it was based on the Shelby GT500 engine but it was tweaked to produce 540 HP, compared to 500 HP for the ShelbyGT500. The 2010 Shelby GT500 engine is basically the same engine as the KR.
Bill Seabrooks - superfan1