RB25de pistons in rb30 block, Prep help

[vl_2010]

hey guys, so im accually doing an rb25/30 or RB30DE engine build. i have all the bits and peices needed and tomorrow im taking to my engine builder, just with the rb25de pistons whats needed for them to be used in the 30 block? does anything need to be done to it? i herd it needs to be bored .8m but is that it? i will be using standard rb30 rods and a rebuild 25 head.

[nasty1]

why not ask your engine builder tomorow?