can anyone help me determine the diffrences in the two motors 5sfe & 3sfe. yeah the 5s is 2.2 and the 3s 2.0. but beside loss of power, would i beable to use aftermarket hearders that go to the 5s. or the webcams that go in the 5s? my guess is no, but correct me if im wrong.

Header [NO S, there's only ONE] yes.

Cams, probably not [unless they're ground from a 3S cam, not a 5S one. I believe the cam journals and all are different.
But feel free to double check me, I might be wrong.

You can use the 3sfe headers (pacesetter ) - headers will not be a problem between the two

Pacesetter headers for the 5sfe? Where are they at?

Pacesetter offers headers for the 3sfe which can be used on the 5sfe since the 3s and 5s exhaust manis/headers are interchangeable+



-Terra