will 2.8 fiero headers fit on a '95 3100?

[gboogie99]

i am trying to find headers or manifolds that will fit before i turbo my car and it occurred to me that these may fit and are available pretty cheap. Anyone know for sure?

[Manitcor]

RE: will 2.8 fiero headers fit on a

port shape is different, not sure if the bolt holes are different, im farily sure the header routing is different. You need S&S headers for the 3400, they will bolt up, you need to deal with fround mount and firewall clearnce issues though

[gboogie99]

well, what about from an isuzu wit ha 3.1? Does anyone know what year they stopped using a 3.1?

[Guest]

Any iron head 2.8 header (including Fiero and the Isuzu Trooper) will have the following differences:

-Port shape, the genI (iron head) uses a round port, where as the genIII uses a D-shaped port.
-Bolt spacing, the bolt spacing is wider on a genIII head than genII. The bolts are spaced farther apart accross the port, by 1/2" IIRC.

Could a Fiero header be used, as far as modification to fit the genIII head goes, sure. There is a thread in the engine swap forum started by whiteraider, in which I describe the needed modifications.

The big issue will be chassis fitment, just because it may fit the engine, doesn't mean that it will fit that engine in that chassis.

[gboogie99]

just peeped the other forum. sounds like a really good idea as well.