Ultimate RB20 Head source

[Guest drift_me_silly]

Does anyone have any idea whether the casting for the R34 NA RB20 Head is better than the R32 version?...As a starting point for an extreme RB20, which would be better?...

[S13 Silvia]

Did R34's come with RB20's?

[Roy]

They only came NA so i suspect they wouldnt flow that great and would bump up compression too much.

That said i dont really know and essentially talking out my a55.

[greygirl1976]

there is no difference between turbo and na heads the compression is done in the pistions

[Roy]

So out of interst ar ethe cams, valves, valve springs etc all the same between NA and turbo.

[greygirl1976]

sorry couldnt tell u about the cam duration probly diff but the rest is the same thats 1 good thing about nissan to do this