Piston Ring Set 4.165 Gapls 2nd 1/16 1/16 3/16

The Piston Ring Set 4.165 Gapless 2nd 1/16 1/16 3/16 by TOTAL SEAL is engineered for serious engine builders and high-performance enthusiasts who demand precision ring fitment and superior sealing characteristics. Whether you're rebuilding a stroker motor, refreshing a tired stock block, or assembling a race-ready engine, this ring set delivers the exacting tolerances and gap specifications that separate a mediocre build from a reliable powerplant. TOTAL SEAL's reputation for manufacturing excellence makes this an ideal choice for anyone investing time and resources into a quality engine refresh.

This piston ring set features a gapless design that minimizes blow-by and maximizes compression retention across the combustion cycle, critical for both naturally aspirated and boosted applications. The ring package is configured with a 1/16" top ring, 1/16" second ring, and 3/16" oil ring—a proven geometry that balances sealing efficiency with reduced friction for improved power delivery. The 4.165" bore diameter is precisely manufactured to ensure proper side clearance and end gap when installed in correctly prepared cylinders, preventing both stiction and excessive leakage that can compromise oil consumption and ring life.

Mechanics and engine builders working on four-cylinder, small-block, or mid-sized displacement engines will find this ring set indispensable for applications where tight tolerances and controlled gap specifications are non-negotiable. Before installation, verify your cylinder bore diameter matches the 4.165" specification and ensure all cylinder walls are properly honed to manufacturer specifications for optimal ring seating. This ring set is compatible with cast-iron and aluminum block engines and works equally well in street, bracket racing, and endurance applications where reliable compression and minimal blow-by are essential performance targets.