The 3.0L bore diameter is larger than the 2.5L (82.4mm), that is how the 3.0L gets its larger displacement. Also these pistons are for 1.0mm overbored cylinders. Better off to start with a 3.0L block if you want to use these pistons.

******************** 1998 E0 SVT Contour Black/Midnight blue Blizzaks, DMD, metal impeller water pump, Bendix Titanium pads *No mods, just lots of maintenance (113K miles)