Used stock pistons with stock dimple rods out of a 525sc(454) with approx. 400 hours on them. Ran great just upgraded....150 plus shipping
Out of same engine stock valve springs...100 shipped

Don't know if this stuff is of use to anyone..Like I said motor ran great just upgraded...open to offers

Do you have piston Model # and brand?

Not sure...its the stock merc stuff that came in it...this is the 525sc not the HP525..its the 454 version with the blower on it...I'll try to find some more info