anybody have measurements for GT500 exhaust manifolds???

[dream07]

I am in the final stages of putting my 5.4 C-head engine into my 2007 Mustang. I have been playing with exhaust manifolds for awhile, but I need to know if the 2007+ Shelby GT500 exhaust manifolds bolt up to the 1999-2001 C heads? It would greatly simplify my h-pipe/o2 sensor/egr situation.

Everyone quickly would dispute it, but they look like if the bolt pattern matches (or is close enough to egg-out), the GT500 ports are just larger ovals and the c-head may have enough material to seal it up.

The GT500 exhaust manifolds aren't easy to come by and I am running out of time before I just make my h-pipe with the 2001 exhaust manifolds (yes, they fit the s197 chassis perfectly).

 

[Fullboogie]

You should put up a "wanted" post in the classifieds on SVT. There are tons of guys running around with headers, so I'd assume there are lots of manifolds sitting on shelves around the country. Someone is bound to offer you one (or two) for cheap or free.

 

[Seer]

I have a set you can have relatively inexpensive.

I know the GT500's don't become a restriction until about 650hp