
If you've performed any manner of work under the hood of a Z32 twin turbo Z, you'll understand the love-hate relationship we have with its 3.0 liter twin turbo V6 - the VG30DETT. With two of everything - heads, intake cams, exhaust cams, turbos, intercoolers, throttle bodies, the VG was ahead of its time. The beauty of such a symmetrical design skids to a grinding halt when you realize the whole damn mess barely fits in the engine bay.
As a result, the 300zx ranks as one of the toughest japanese cars to work on - every single task is an excercise in bloodied appendages and excessive cursing. Need to replace a turbo? Drop the motor. Replace an 02 sensor? Drop the motor. Replace a spark plug? Drop the motor. You get the picture - the VG is an engine you want to work on OUTSIDE the vehicle.
In an attempt to set himself apart, one owner managed to pull off a fairly clean RB26 swap from a japanese market Nissan Skyline GTR. At 2.6 liters, some would argue that the RB lacks the torque and powerband to provide the locomotion that a 3700lb Z chassis requires. Others complain that an inline six would just throw off the balance of the whole car. When asked which motor they'd rather work on, we're sure which they will pick.