Epoxy block fill: how to strengthen an automobile's engine block
Epoxy Block Fill is a special heat-resistant epoxy mixture poured into the engine block's cooling jacket to increase rigidity and strength. This process is used in tuning and motorsports, especially when installing turbocharging or significantly increasing power. It reduces block distortion under load, prevents cylinder head gasket failure, and improves reliability under extreme conditions. Partial filling is performed to maintain cooling and is most often used in racing or high-performance engines.