Replacing exhaust manifolds. Is there really a difference between 98 and 99?

[cavakilla]

Shopping for exhaust manifolds for my 98 expy. the manifolds for the 99 are about 50 bucks cheaper. has anyone had them side by side to know what the real difference is?

 

[98EXPY 5-0]

I have the driver side manifold and studs for a 98 5.4L EXPY still in the box that I never used. PM me an offer if you are interested.

 

[FordandPolaris]

Might have something to do with the swap to the PI heads in 99? Not really sure, but I would stick with the 97-98 or take the ones from 98EXPY.

 

[cavakilla]

Thanks for the replies!

 

[sbtg]

I have a 98 with 4.6L i installed 2000 4.6L ones on it with no trouble. they are a little different but i replaced both together and had no issues. i think length at pipe is a bit different