I have been thinking about replacing the stock 2009. 6.1 short block with a forged setup but do not want to turn in my short block as a core as it only has 3,300 miles on it from the factory and it would be ashame to tear it down when it is in perfect condition. There is a core charge for a new short block so I would need to get something reasonable to cover this. I do not know if I am doing this or not yet. PM me with what you are willing to spend and I will let you know if I want to go this route.Looking for a low mileage 6.1 base short block or stock 6.1 block. Will consider new short block if the price is right. I have a 2007 5.7 with around 53k for a core.