Originally Posted by
pa_sjo
Standard silver-top small end is 20.63mm.. calibra pistons are 21.00.. you may have to machine the inside of the piston too to clear the rod, depending on which you use.. also need to machine some off the skirt to nicely clear the oil squirters.
Do you know if anybody as done this, I have an engine company doing this work for me and they feel that doing this to the con rods will weaken them to much.