Technical flathead pistons and valves

So i have this box full of std. pistons and valves. Is there any use to these? if not im making some art figures with them. Let me know cause i dont wanna destroy something usable to someone...

 

Are the pistons 3 1/16 or 3 3/6? If they are 3 1/16, not worth much unless someone is sleeving an engine. Also, 49 - 53 exhaust valves are worth keeping.

 

Im not sure what year these are for, i have 2 sets... how can i tell?

 

I save any part that can be reused maybe someone out there wants one and I can help him out.................

measure them

 

I mean the valves, what dimensions are ok?

 

I may need a couple standard model a pistons.

 

Farm if you can use these ill give you a set

 

I would never throw away any stock parts from old engines as long as they are still good to reuse . I understand that most end up re-boring to a bigger size but since you can only rebore so much you then have to sleeve the cylinders thus you will once again need those stock size pistons .
You could just make a post and try and sell them . I bet someone will need them ! You could even use those on-line auctions as well .
Just a thought !

Retro Jim