The issue isn't with the pistons... It's with the retard that machines/assembles the block. Use a dial-bore gauge to find the size of the bore. Use a micrometer to find the diameter of the piston skirt. Subtract. There's your clearance. Double-check with feeler-gauges. If it's much more than Honda's recommended tolerances(about .003" I beleive), buy oversize pistons, bore, hone and get the right clearances.
Don't blame the pistons for not fitting your 130,000+ mile block. Blame yourself for not buying .010" oversize.