Not sure if anyone has mentioned what car this is going in???
After doing a RB2630 in a R34 GTR, I would say don't do it if it is going into a 4wd, especially if you want to go dry sump in the future. Bonnet didn't fit, sway bar fouls the dry sump fittings, block adapter means bottom gearbox holes are now out by 40mm, inter cooler pipes need to lengthened, exhaust needs to be lengthened, strut brace doesn't fit, clutch master doesn't fit anymore... The list goes on and on...
If you build a 3ltr, build it as a 3.2ltr.
Also, a RB2630 does rev, mine will go to 9000... And has survived a few 10,000 over revs.