yea thats the thing, there so many weird things with they way they did them. from what ive found majority of them are dr fill and 13 bolt vs 11 bolt.
So what does that say for the thousands upon thousands of Crown Vics in Civil service duty and/or being used at Taxi Cabs right now that are running up into the 300-500K range with their Romeo blocks? Like I said....ones really no better than the other. If one chooses to believe that the Windsor based engine is the better platform of the two because they're holding onto the old OHV namesake, or because Ford used them in their trucks before hand, then that's fine. Just know that it's all in your heads at the end of the day and one will last as long, make just as much power, or break a rod or a piston just as easily as the next.
PI stands for "Performance Improved" It was accomplished over the previous non-PI engines (pre-99 for the Mustang) by swapping the intake manifold, heads and cams out for better breathing pieces. The end result brought the early GT's from a Ford rated 215-225hp/280tq up to 260hp/302tq
