All right fellas, got the heads off a buddy of mine' truck last night. Need a machine shop that knows WTF their doing. Didn't have a feeler gauge last night, so I don't know if their flat or not. The shops I went to in the past didn't even know how to check a 6.0 head for flatness. Anyway, my buddy is wanting to take them somewhere today and I don't have time to go check them. I didn't see a crack last night, that don't mean there's not one though. He's got fuel in his coolant so something is up with them. If it turns out it's just a injector cup leaking, and there flat enough, he's gonna want the works done to them. Anyone got any ideas????? Give me a direction to go here. Guy lives in the greater liberty-Harding area. Help me out here fellas.