Here's my dilemma. I have found a set of heads that are in a salvage yard near me. They are on a '03 Crown Vic police car. The yard will not let me go pull them off, I have to pay them to do it. What I'm wondering is... Are these PI heads? If yes, then I'm wondering if the Vic's had a Romeo block or a Windsor block. I've been told that the number of bolts for the valve covers are different on the two. I would like to stay away from using conversion kits if I can. Any help or insight would be much appreciated!