hehe, grab the engine mounts from a LD28 powered laurelor R31 skyline station wagon, because of the deck hieght on the block the engine mounts are shorter,
the Rb30 was a australian only model in the r30, r 31 skylines and the last of nissan's 3l stocks were sold to GMH to power the 1987 holden commodore as this was a cheaper option then trying to engineer a new motor to come in under australia's exhaust emmisions laws as the 202 would never pass.
the patrol runs a live front axle this block could be used aswell as that from a vl or early skyline
3l gxe nissan station wagon for example.
the only major difference between the blocks of that era are the deck hieght and stroke,
i used the rb30 block and crankshaft from a vl, to replace the *$&%ed 26 block from my gtr
had the block honed and faces machined, the crank machined and balanced, oversized bearings, new rods and pistons.
everything pretty much was a straight swap, the sump, pick up , etcetc,....
ran fine still does now, however i had the problem of shutting the bonnet too.
it was an old retired mechanic who told me what engine mounts to try. i would have never have known other wise and probably would have had to get a custom bonnet made.