ca18det engine parts

[nuts510]

I and this assembling a ca18det for the purpose of a rebuild I don't plan on modifying the car very much and have found one of the pistons has a broken ring landing. Has anybody found a good source for pistons, or does anybody have one good used piston? Anybody at it can help me out would greatly be appreciated. I'm trying to keep costs down plus some only looking in the run about 250 horsepower.