SKU: TOTT0690-25
MPN: T0690 25
The Total Seal Piston Ring Set 4.145 Gapless 2nd 1/16 1/16 3/16 is a premium piston ring kit engineered for high-performance 8-cylinder engines requiring precise bore fit and advanced gapless ring technology. This file-fit ring set delivers the dimensional accuracy and sealing integrity demanded by engine builders and performance enthusiasts who need maximum compression and minimal blow-by in their builds.
Manufactured from ductile iron in natural finish, this piston ring set is designed for 4.145-inch bore diameter engines with a gapless second ring configuration. The ring thickness specifications—1/16 x 1/16 x 3/16 inch—are critical for controlling ring flutter, maintaining consistent oil control, and optimizing combustion chamber sealing across the rpm range. Standard tension characteristics ensure proper contact with the cylinder wall without excessive wear on the bore. File-fit design requires honing and gapping to match your specific engine clearances, allowing builders to dial in exact tolerances for their application. The gapless second ring design minimizes side clearance blow-by while maintaining thermal stability in high-boost or high-rpm environments.
This ring set is intended for serious engine builders, performance tuners, and technical enthusiasts building or rebuilding 8-cylinder applications where stock components no longer meet power and reliability goals. Total Seal's piston ring technology is widely used in drag racing, road racing, turbocharged engines, and naturally aspirated high-displacement builds where superior ring design directly impacts power output and engine longevity. Proper installation, correct gapping, and accurate honing are essential for optimal performance.
Gapless ring design represents an engineering advancement over conventional three-ring packages, reducing flutter-induced losses and improving seal efficiency. For builders committed to maximum power and reliability in custom 8-cylinder engines, this Total Seal ring set delivers the precision and performance characteristics needed to justify the investment in premium ring technology.
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