Hypereutectic Cast Piston

KB PISTONS Hypereutectic Cast Piston KB Hypereutectic Cast Pistons deliver reliable performance and durability for stock and mildly modified engines. Cast with a 16% high-silicon hypereutectic alloy, these pistons provide superior thermal barrier properties and low thermal expansion for tight piston-to-cylinder clearances. High silicon (16%) hypereutectic alloy for improved wear resistance and heat management Low thermal expansion enables precise clearances and reduced piston slap Improved ring seal for better compression and efficiency Quieter engine operation thanks to tighter fit and reduced mechanical noise Ideal application : air-cooled engines, stock or mild builds Recommended limits : up to 10.5:1 compression ratio on pump fuel These KB pistons are engineered to extend component life while maintaining OEM-like tolerances, making them an excellent choice for restorations, daily drivers, and light performance upgrades. Choose KB Hypereutectic for consistent combustion sealing, lower maintenance, and dependable street performance.