Wiseco Honda R18A 81.50 mm Bore 28.50 mm CH -10.00 CC Piston Set

If you're rebuilding the engine in your sport compact Honda and pushing its limits, a set of Wiseco Professional Series forged pistons is what you need. These aren't just replacement parts; they're built from the ground up for demanding performance applications where reliability under stress is critical. They are designed to handle the kind of heat and pressure that comes with serious racing or heavy-duty engine builds.

Wiseco crafts these pistons from 2618 aluminum, a material chosen for its improved tensile strength, which is essential when you're dealing with high combustion forces. Each piston is fully machined, including precision ring grooves that ensure a solid seal, and they feature an anti-detonation groove to help prevent damage. You'll also find forced pin oiling to keep the wrist pin lubricated, and the ArmorGlide skirt coating helps reduce friction and noise while resisting seizure. These features combine to make a well-built piston that can withstand severe duty applications.

This set is specifically for the Honda R18A engine and comes with a 81.50 mm bore size and a -10.00 CC dish volume. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.