hi, i'm planning a crvtec build up.. going to keep it really mild/stock. i have already got a B20b shortblock and a complete b16a2 from my car. i have searched everywhere and cant get specific info a few questions: 1) can i use parts from the b16a eg: oil pump water pump 2) can i use b20b water pump with the b20b timing belt on the b16a head 3) similarly with the B20 Oil pump. 4) b16a head studs/bolts, or do i need B18c ones? any help would be great, just trying to keep cost down and recycle what i can from my b16a.