I have this NOS gasket kit I picked up a long while ago. It is labelled ISUZU 98851-21800 and suits a side flow motor.
At the time I thought it was going to fit my G161 however the inlet/exhaust gasket is all off. (The motor in my LUV has square exhaust ports and round inlet ports which is the oppisite in this kit)
I haven't had any luck searching the part number on google but I was wondering if anyone on here may know.
I have those Pistons saved in my watch list, might wait to see what mine are like first.
Managed to find crank bearings, rod bearings, cam bearings (hope these are the right ones), timing chain, std rings and already have a conversion gasket set as well as what can be borrowed from the above. So almost have everything I need on the way I think.
There is also a guy in my local who trades as "gem wreck" so if I need rods and Pistons I'll try him first.