fordboy1999

My intake is cracked on the coolant passage i want to replace it but i don't know where and what to get. Will a 2003 manifold work on a 1999

5.0mustang5speed

why not get a 99..if yours is a 99 what is so special about a 03

Acer2428

2001+ have an aluminum crossover so it won't crack, that's what so special. And yes, it will work.

Gaspi101

Yes, 1999-2004 manifolds are all compatible, as PI manifolds. You can do a manifold swap yourself--As a matter of fact, I just swapped my own manifold for that very same reason: cracked at the temp housing, and leaking coolant. The solution is to get a manifold with the aluminum crossover. You can get a new manifold for about $250 off of eBay. I have the entire process in pictures if you're interested. I'm attaching a picture of the new manifold I put with the aluminum crossover after I torqued it down, but obviously before I reattached fuel rail, alternator, plugs, etc. Let me know if there's any questions I can answer for you. I hope you decide to swap it yourself. It was so much fun to do this (see picture of me after I started the car with no leaks the first time)...hehehe...good luck!

[IMG]local://upfiles/12394/C8C6391CEB83488595462660AE354047.jpg[/IMG]

[IMG]local://upfiles/12394/FA8C772E95834FAF9419CE8E409B46E1.jpg[/IMG]

Gaspi101

And even though it doesn't matter to you, with a PI setup, my manifold came from a 2003 GT, and my car is 96 GT. Even if you don't have the PI heads, the manifold will torque down with no leaks and no RTV if done carefully.