does anyone know if the 07 Z's were built with different internals. I know the older z's have a reputation of having shi**y internals. but supposively that the 07 has at least an 80% different internals, and are better. does any one know if this is true? please post.

thanx

 

yes.

 

all I'm going to tell you is that there are 3 different motors. The 07 is the hr. Please use the search feature on this site or your going to **** off alot of people with threads like this. There is a tremendous ammount of knowledge on these forums. Use it!!!

 

Yes 07's with the HR motor have 80% new internals. Most are saying they are internals with forced induction in mind (*ahem GT-R*)

 

Yes the HR has a better engine. And beefier rods, which were the weakpoint on the previous engines. I think it was sharif that posted pics comparing the two. The rods are beefier, but not that beefier, not GT-R standards i would think. Unless they plan on running that engine on the edge a bit.