The VG-series is Nissan's first V6, a SOHC design that debuted in 1983, available as VG20, VG30, VG33, etc. VG20 fits within Australia common engine size rules for Datsun 1200. VG20 also has a shorter deck height, thus fits a 1200 a bit better than the VG30.
Overview
VG20 Swap
The VG20E is lighter than the VG30E. The VG30E weighs 340lbs with in and exhaust turbo manifolds 25lbs less without them so 315lbs, the VG20E is lighter than the VG30E due to shorter engine, lower deck height and smaller heads, crank, shorter pistons etc. around 40lbs lighter that is around 280lbs for the VG20E without alternator/fly/clutch.
dattoman_1000:Eddie Terrel of Darwin pioneered the VG20 swap into Datsun 1200 in 1989-1990.
Eddies VG20 ute as pictured earlier was a ball tearer
The 20 was only used for setup and rego then a nice 30 was actually slotted in for the fun stuff
Was a nice car to drive and had great power
A nice developed car
The transplant was a great success, and has been copied by about 5 others in my home town.
...
Surprisingly enough there are no modifications to make in the engine bay apart from a few mountings that need to be installed to mount additional control gear.