Just wondering if the truck intake manifolds differ in any way is one better than the other or are they all the same?

 

i believe the 4.8, 5.3, & 6.0 intakes are all the same.

 

the only change i am aware of from the 99 to the 05 was the egr

 

whats an egr?

 

Exhaust-Gas Recirculation--a method of reducing NOx (oxides of nitrogen) exhaust emissions by recirculating some of the engine's exhaust gas into the intake manifold. The exhaust gas serves as inert filler that absorbs heat during the combustion process and reduces the peak temperature reached during combustion.

Bless the all mighty Google!

 

as for deminsions and all they are the same.