WISECO 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 and noise, freeing up horsepower. Sold in complete sets with pins and rings. Please note, these are a non-stock item and delivery can take 10-15 days.

Honda H22A engine is 87mm standard bore size , the cylinder bore on the H22A engine has a special coating called FRM . Due to the engine cylinders having this coating it is not suitable to hone or bore them oversize. The block would need to be machined for a new cast iron cylinder liner and that liner installed ... we also offer this and other machining services , to learn more click here