how do i know if my 04 gt has pi heads or waas it standard?

 

its and 04, it has PI heads. the PI heads and intake manifold were given to ALL GT's from 99-04. same block as the earlier motors, but different heads to give it more power.

 

It was standard

 

wanted to know also about the p.i. intake i saw for sale for about $190 then i saw a typhoon intake for about $600 for 99-04 any ideas what is the difference?

 

you already have PI everyhting, so dont buy a PI intake, especially on the 04 since you already have the aluminum crossover. the typhoon is just an all aluminum aftermarket intake. not worth all the money IMO unless your doing alot of work

 

rule of thumb: from 99-2004 the gt (incl bullitt) came with a 4.6l sohc 2v per cyl, and cobras (and Mach 1s) came with 4.6l dohc 4v per cyl. 2005+ mustangs have 4.6l sohc 3v per cyl.

 

SOHC's make they're torque quicker but that's about it. DOHC is better all around.
96-98= Non-PI
99-04= PI (generally the mid-'01 to '04's dynoed alittle higher)
05-current= New 3V platform

 

I would have to say that the SOHC 4.6 is one of the uglies engine ford ever built. I was going to put one of them in my ******. But unless you cover the engine completely it is ugly. That is why I went with the DOHC 4.6. Now I just have to get done with my daughters car so I can get the ****** back in the shop to start putting the twin turbos on it.

http://i259.photobucket.com/albums/h...r/DSCN0023.jpg

 

rule of thumb is for guestimates, but i guess... when in rome