NismoTuner21

Ok, so I blew my VG and I'm looking into swapping in an RB25 or 1JZ if I decide not to build the VG. I searched on here and didn't find what I was looking for, my question is; which motor is more reliable? I know that if I went RB25, I could use my 1pc driveshaft, my trans with an RB bellhousing, my clutch, stock trans mount, my injectors, and maybe the tuning software I have now. I may even be able to scoop up an R-chassis crossmember and not have to have custom engine mounts. Cons on the RB are that I've heard they have oil delivery problems, causing bearings to spin blah blah blah. Now for the 1J, I have a pretty sweet deal lined up and after taking some measurements it looks like I'm gonna have to use front sump, mod my cross member, and make custom driveshaft and mounts (which I don't really mind doing). Do any of you guys know the if Z, S, and R chassis crossmembers are interchangeable? If so I can get an S13 crossmember, bolt it on and just buy $100 mounts and get rid of half the work and the need to mod the crossmember.

But anyways, the main question was, which motor is more reliable?

TIA!

And it's going into this POS