OR (gotta throw that in) use a 312 ford piston @ 3.8 bore with a 1.760 PH and your 7.565 rods. That's a very livable over bore and it gives you 259 cubes. You could either offset grind the crank 12 thou. for a zero deck height or take it off the deck. Panics link
http://www.kb-silvolite.com/assets/09_silvolite_catalog.pdf gives both bore and piston pin height.
