Originally Posted by slow
there is no difference.
a vette ls1 intake would not have EGR, but most likely the engine is the same, even if it was out of a vette.
+1 with what he said and you said the heads are 806 which is the head number for the 98's. You can change the heads out with a set of 243's which flow a whole lot better and slap a LS6 intake on it and then when you start doing alot of modding or mods your see a pretty good gain.