replacing standard rod bearings how many do I need to purchase?

 

I don't think you should replace them if you don't know how many to purchase.

 

Welcome- replacing rod bearings is not something you should do on a piecemeal basis. Maybe you should start by stating WHY you're replacing any rod bearings at all. Add how many miles are on Z, background info, etc.

 

"Well, I took off a rod cap and the bearing was broken into two pieces."

Sorry OP, couldn't resist. Well, yes I could but I didn't.

 

Lolz, believable.

 

On a local Nissan board, there was a 240SX owner who asked a similar series of questions. After a week or so, he came back onto the thread and proclaimed: "Shoulda listened to you guys. I was driving down the road and the engine cut out. Then I was sliding in my own oil. Looks like there's a hole in the side of the block, so if anyone wants to buy a clean S13 with a blown KA, let me know." You can't make this stuff up...