The only way I thought of running a diesel in Turbo form and
all Nissan is to start off with an L13 engine block and fit a
Nissan diesel LD20T head and gear.
A descendant of the L series you will need to destroke the L13
crankshaft by offset grinding its crankpins to take it from
59.9mm stroke to 52mm. That is 8mm so crankpins will go from
50mm to 42mm and use billet rods.
Youll get a 1180cc turbo diesel for starters