Wiseco Mitsu Evo 4-9 HD2 Asymmetric Skirt Gas Ported Bore 86.00mm -Size +.040 - CR 10.5:1 Piston Set

Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strengthArmorGlide? Skirt Coating: seizure resistant, friction reduction, and quieter operationFully machined crown featuresPrecision ring grooves, anti-detonation groove, and additional ring seal improving featuresForced pin oilingDesigned and built to withstand heavy to severe duty performance applications