I have a set of Arias Pistons that came out of a customers truck, that were ran very minimumal. The are 24v Standard Bore, with the coating on them. They are 12.5:1 Compression ratio and have approxiamtely 50 thousands valve reliefs cut into them. When he bought the truck/engine they were in there and he is wanting more of a stock piston for a daily driver instead of a competion vehicle. His price is $1200.00/ OBO. The are located in London, Ohio. Free shipping in the US.