Alright i finally purchased a d16z6 with 170k miles on it pulled out 5 months ago from my cousins 94 ex. Should i replace the water/oil pump or before turboing or maybe just the water pump. Also the engine will be replacing my blown y7 in my 96 cx. I was checking out the sensors on the z6 and there are two in the back of the IM that im unsure about. one is white and the other if black with 2 nipples and what looks like a ****. If someone can help me out that'll be great.

 

Yes, replace timing belt, cranks seals, etc. too.

 

havent looked at a z6 in a while . but im gonna guess the white one is iat(intake temperature sensor) and the black one is just a purge solenoid(sp?) i would replace headgasket,water and oil pump. all the seals. so you know your not gonna run into these small misc problems. i guess its not neccesary but if you have the time why not while its out.