"The RB bolted straight into the existing engine mounts. There was just a little tab on the mount that was square and the rb had a round hole so just drilled it a bit bigger. The engine sits low enouth for the bonnet to close, apparently on a 280z you need to lower it for it to fit but not so on the zx the standard sump does hit the cross member as the member in the zx is a bit further back than in the skylines so all we did was cut around the cercumfrance of the sump and turn it 180 degrees and welded it back on again. the block actually has a blank hole to take the dipstck at the back of the block into the sump insterad of the front which was handy.. The driveshaft splines are all the same. the radiator hoses are all in the right sides. You do however need to use a bit of each gearbox cross member tto combine them to get the gearbox to bolt up. aparently a r30 lsd is a good upgrade and bolts up. we havent tried to put the r32 r200 on it yet. the loomas are prety easy to work out as nissan use a two piece loom so you keep most of the old loom and use the new one from the skyline purly for the engine. All up was pretty cheap. "