I haven't checked that closely, but the pistons that came out of the 235 should give me a dimension to shoot for (from the pin hole to the bottom of the piston.) The one piston I had installed just barely interfered. These pistons have a fairly heavy boss about 1/8" above the bottom of the skirt, so thinking trimming down to that point might do the trick. I may look into using an angle grinder. The suggestion to weigh the pistons to match them is a good one as well.