1971 340 L2316 pistons stock, modified or damaged?

Cudafever: the guy was honest about engine condition and who had built it previous to him owning it. He had it in his Duster and said it was a dog. He pulled it and ran with a 360 instead. Unlike some sellers who wouldn't take the time to let someone open up the engine, he insisted and we took off the heads to inspect. We agreed on the sale price after this was found. I didn't jump in and just lay down the cash before inspecting it. I do plan on tearing it down piece by piece. I do plan on using all new parts as well.