Sports Parts Inc. Piston Assembly - 85mm Bore - SM-09221
High-performance pistons are engineered in the USA, manufactured in Taiwan
High-silicon content Hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing
Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy
Hard anodized crowns are 75% stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon/Molybdenum coated skirts
MOS2 (Teflon/Molybdenum) coated skirts perform at the highest standards, reducing friction and heat for added power and longevity
SPI rings match and interchange with the OEM design; unless noted otherwise
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