The same basic approach can be taken with a 235, but the displacement tops out somewhere around 270. Same long stroke, same rods, just a somewhat smaller bore size. The head would probably need a little milling to get the compression up where it needs to be. I really detest domed pistons- - - -they mess with the flame front travel across the piston crown and create hot spots and pressure spikes that lead to detonation.
Jerry
