WISECO PISTON KITS FOR HONDA B16A - 82MM BOREWISECO Forged Pistons. Wiseco Sport Compact pistons are made from dedicated forgings produced in house to give you a lightweight piston with superior strength and optimal design. Being the multivalve piston technology leader, this line features specially designed valve pockets, complex dome and crown shapes, the steel nitride napier rings and optimised skirt profiles. The pistons come standard with the ArmorGlide coating material for reduced friction