just read this whole thread, i went down the route of building a 20 last year, looking back i should've just done a standard single cam 30 with a decent sized turbo but ohwel
the engine ended up costing around 4k all up to build which wasnt too bad, wouldve cost me about the same to do a 25 conversion.
yes i know BIG WASTE OF MONEY but i built the car to Drift, which it does perfectly fine so thats all that counts, power figures werent realy a concern just wanted a reliable motor and thats what its got
HKS camshafts, 264/8.5mm
HKS cam gears
Supertech forged pistons 20thou oversized
ARP rod bolts
ARP head studs
Cometic metal head gasket
Cometic gasket kit
new genuine Nissan oil pump
new genuine Nissan water pump
new genuine Nissan idler pully
new genuine Nissan tensioner pulley
NDC bearing kit
Gates timing belt
Tridon thermostat
grub screwed, balanced and ground crank
balanced pistons
balanced and resized rods
decked, bored and honed block
resurfaced head
valve grind
new valve stem seals
exhaust guides and ports cleaned up a bit