Differences Between R33 Rb25 & R34 Rb25 Blocks?

[dori34]

need some confirmation.

i have a R34 RB25 neo.

looking for a replacement block so will a RB25 block from a R33 GTST fit/bolt up and be used perfectly fine?

look at pistons, i can only find RB25 replacement pistons, nothing specific for R33/R34 so i can assume they are the same?

if not, what needs to be done and what are the differences?

ive searched in google but got nothing in return.

ive posted in the skyline tech section but that place is as dead as a graveyard.

Thanks in advance.

[dori34]

surely some guru on here must know?