Piston Wear

[306Dan]

Here's one for you Xud guru's, pulled my pistons this morning to fit my hdi rods and found this
   
[attachment=24802]

definatly something wrong so i went to the scrap yard and pulled these out of a 50k (apparently) xud.
   

Is this normal? can they be used or do i need to search for some more, my guts telling me go find more but am i just going to keep pulling pistons with the same wear?

Oh and if someone has a good set a price please posted to dn21

[craig306]

zoom out a bit with the cam on the first pic, and point to the bit you mean.

[306Dan]

I can't get to the Pistons at the mo but if you look on the gudgeon pin hole its work straight through the white metal and into the cast and the second Pistons got a wear area in the same place but doesn't go through the white metal

[craig306]

im sure its to get oil on the pin?? if it was a wear mark you wouldn't see it as the pin is round and the whole thing would be worn, if that makes any sense