I've got a c210 2 door skyline sitting in Kalgoorlie, my mods are as follows:
R30 diff + disc brakes, brass syncro 240k gearbox 5 speed, 4 bar radiatior, Air conditioning (fitted from a later model) L280, nitrited crank, handmade timing chain, 280ZX oil pump and electric dizzy, modified inlet manifold to fit an EF falcon throttle body, Toyota crown (I think) flat top pistons, Crane Cam, ported head, (similar to the p90, but it isnt...?) Haltech F9A EFI computer, VL commadore inline Fuel pump and a Nissan Patrol (LD28) clutch.
The whole thing was ballanced prior to assembly
I put it all together with a dial micrometer setting TDC ect...
This car went like a cut snake, until the octane levels in pump super fell. She kept popping head gaskits and I got sick of replacing them, three years now the car has sat in the backyard. while I've been playing with Jaguars.
Great set of posts her, you've gotten me all nostalgic!