KB596LCA000 M8 114"/117" to 128" big bore conversion piston kit. STD

Take your Milwaukee-Eight to the next level with this KB Performance 128-inch big bore conversion piston kit. Sold as a pair, these forged 4032 alloy pistons are designed for 114 and 117-inch engines with a stock 4.5-inch stroke. They feature a hard-anodized crown to manage heat and a specialized Line2Line abradable powder coating. This coating allows for a zero-tolerance installation, as the piston wears in its own perfect fit during the initial run-in period for maximum ring seal and zero piston rock. This kit requires 4.25-inch bore cylinders and fits 2017 to 2025 Milwaukee-Eight engines, accommodating up to 3mm larger valves.