I am sure many of you know this, but for the ones that don't:

http://www.v6power.net

http://www.3.8mustang.com

both are really good sites for 3.8, 3.9, 4.0 and 4.2 mustangs.

 

3.9?? 4.2??? whatare those?

 

some 03-04 v6 mustangs are actully 3.9's and not 3.8 but they are the same thing really and I am not sure why ford did it.
the 4.2 is the motor that is in the F150 V6 that a few stang guys use, I am not sure how they manage to get it all in there but they do. Those motors are about 240hp plus when ever bolt ons you add to it and what not.
Some people just have to much time and so they get board. There are also a few members on both forums that have the Ford ThunderBird SC motor, really cool.

 

 

heres a link to a guy on 3.8mustang.com with a 4.2L motor

http://3.8mustang.com/forum/showthre...highlight=4.2l

 

and heres the 3.9L thread on v6power.net

http://www.v6power.net/forum/viewtopic.php?t=17123

 

There is a guy here who has the 5.4 thats supercharged in his green GT.

 

www.supercoupeperformance.com