Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec whats up with the 3.5L, been waiting

you would never be able to bore a 3.0L out to a 3.5L... i don't even think the cylinders walls have enough material to do it, then you sill need to allow some wall thickness or the heat would be too great... also remember theses blocks are aluminum, and too much heat is not hard to accomplish with aluminum thus leading to warpage.....