David Z, I too am looking at my 3L block and heads out in the work area and I wonder if its possible to drill and tap a fitting to the corner of the 2.5 head that has no drainback and then run a metal line down into the 3rd oil return passage on the 3L block. A little machining of the inside of the 2.5L heads where the fitting is to cause the oil at the rear of the head to drain out at the fitting might speed its return to the pan. It may not be much use, but it might be worth it since the 2.5L heads are going on an engine that has the available oil return.
Does anyone have any idea of OIL STARVATION IN 3.0 TAURUS' and SABLE?
warmonger
