With the heads in place, Matt torques them to spec. The head bolts are torque to yield so we are using new pieces. Don’t forget to add oil between the head bolts and the heads to keep from getting a false torque reading. There’s a rather involved specific torque sequence for the heads so have a manual with you if you choose to do the swap yourself. And, by the way, a person with minimal mechanical experience can do this swap, but as with everything, sometimes it’s best to leave it to the experts.