Forward Facing Intake

[StevenCJR31]

Hi guys, can anyone tell me the difference between the R33 RB25DET heads and R34 RB25DET NEO heads?would like to fit a forward facing manifold on the 34 but have only found (locally anyway) listings for the 33 25DET, is it the stud pattern on the intake that is different or that and a heap of other things?

[ARTZ]

http://www.skylinesaustralia.com/forums/topic/160464-trust-greddy-plenum-on-r34/

[StevenCJR31]

Thanks for that link ARTZ, that made for some interesting reading, looks like the 33 FF intake CAN be fitted on a NEO head with light mods