LSX FT Piston Set 4.125 Bore -4.8cc 12-Degree

The LSX FT Piston Set 4.125 Bore -4.8cc 12-Degree is specifically designed for LSX-platform engine builds, making it an excellent choice for those looking to enhance performance in marine and automotive applications. This piston set is engineered to deliver reliability and precision in fuel combustion, ensuring optimal performance under sustained loads.

Featuring a 4.125-inch bore diameter and a -4.8 cubic centimeter dome chamber with a 12-degree valve relief angle, this piston set optimizes combustion efficiency while reducing the risk of detonation. The negative dome design lowers the overall compression ratio, and the valve relief geometry ensures proper clearance during high-rpm overlap events, critical for preventing engine damage.

Ideal for performance enthusiasts, this eight-piece piston set is suitable for builds targeting continuous operation in the 5,500 to 7,000 rpm range, common in high-performance applications. With precision-forged construction and tight tolerances, it ensures consistent ring seal and minimal blow-by, extending engine service intervals for those who rely on their powerplants.