how to ID some things

[blade970]

Alright, so I have a few things laying around that I am not quite sure how to identify...
First up is 2 halves of turbos. The silver polished sides (cold?) They don't really have any identifying markers, but I bought them from a local guy here who mods 240sx's.
The second thing I have no idea how to ID are some ross pistons that were in a motor I bought last year. 4g63. They need new piston rings, but since I don't know if they are standard bore, .010 over, .020 over etc., then I don't know what rings to buy?

 

[AllShallPerish]

Post some pics, It will make this much easier.

 

[asrdave]

you will have to measure the pistons with a micrometer or a caliper to get the right rings for it, post pictures of the turbo

 

[blade970]

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you will have to measure the pistons with a micrometer or a caliper to get the right rings for it

So would I just reference the size of the pistons against the stock size pistons?

 

[RednekBubba]

Turbo parts look like some sort of 5bolt t3 exhaust housing and a t4 compressor housing to me.