MCB Performance - Watercraft Stage 1 Top End Piston kits Kawasaki, Polaris, Sea Doo, Yamaha and Tigershark

These Stage 1 Top End Piston kits come complete with all necessary pistons, rings, pins, circlips, wrist pin bearings and a full Top end gasket for your specific model. These Stage 1 Top End Piston kits come in three levels of quality. 1 - Std WSM cast 2 - Hypereutectic WSM cast 3 - MCB Hypereutectic cast made from OEM Japanese tooling (recommended). Kits come in STD bore, +.25mm, +.5mm, +.75mm, and +1.0mm
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More About Watercraft Stage 1 Top End Piston kits Kawasaki, Polaris, Sea Doo, Yamaha and Tigershark

A hypereutectic piston is an internal combustion engine piston cast using a hypereutectic alloy–that is, a metallic alloy which has a composition beyond the eutectic point. Hypereutectic pistons are made of an aluminum alloy which has much more silicon present than is soluble in aluminum at the operating temperature.