Piston Ring Set 4.020 Clsic Gold 1.5 1.5 3.0mm

The Total Seal Piston Ring Set 4.020 Classic Gold 1.5 1.5 3.0mm is designed for serious engine builders and high-performance mechanics who require precision-fit ring sets for stroker and big-bore applications. This ring set is specifically engineered for 4.020-inch bore diameters, making it ideal for custom-built engines where factory specifications may not apply.

The ring configuration of 1.5mm top, 1.5mm second, and 3.0mm oil ring provides optimized compression sealing and oil control for modern engine geometries and higher RPM operation. Total Seal's Classic Gold coating minimizes friction while ensuring superior ring-to-cylinder wall conformability, which is essential for quick break-in and long-term durability in custom pistons.

Engine builders and mechanics working with 4.020-inch pistons will appreciate Total Seal's reputation for consistent ring concentricity and dimensional accuracy. Proper file-fitting to your specific piston is crucial, as Total Seal rings are manufactured to exacting tolerances but require final gap setting by the builder to ensure optimal combustion sealing without binding.