Custom flat top Diamond pistons, set of 8 for 13 degree W8 W9 heads, 4.185 bore, set of 8 .927 H-13 DLC coated pins (cost $100 ea pin), .043,.043, 3mm ring grooves. Fresh skirt coating from Swain. Gas ported, hard anodized. Asking $500 for pistons and pins. Willing to ship worldwide.