CR Piston Ring Set 4.070 Bore 1/16 1/16 3/16

The CR Piston Ring Set 4.070 Bore 1/16 1/16 3/16 by Total Seal is engineered for high-performance classic race engines that demand precision ring fitment and superior sealing. These file-fit piston rings are designed for 8-cylinder applications where exact bore specifications and tight tolerances are non-negotiable. Whether you're rebuilding a vintage race motor or upgrading an existing engine, this ring set delivers the durability and performance characteristics that serious engine builders and racers rely on for consistent power delivery and reduced blow-by.

Manufactured from ductile iron with plasma moly coating, the CR Piston Ring Set provides enhanced wear resistance and extended ring life in demanding operating conditions. The 1/16-inch top ring thickness, 1/16-inch second ring thickness, and 3/16-inch oil ring thickness create an optimized stack geometry that balances compression sealing efficiency with oil control. Standard tension characteristics ensure reliable seating without excessive friction, while the plasma moly surface treatment reduces scuffing and extends service intervals. File-fit design allows engine builders to achieve proper ring gap clearance specific to their bore preparation and intended engine usage.

This ring kit is ideal for engine builders, restoration specialists, and racing enthusiasts working with 4.070-inch bore engines requiring OEM or performance-level compression and oil sealing. The file-fit specification demands that end gaps be individually set to match your specific engine build, making this suitable for custom engine work rather than bolt-on applications. Proper installation requires precision honing to Total Seal specifications and careful gap measurement before assembly. For maximum performance and longevity, these rings should be installed by experienced engine builders familiar with ring seating procedures and break-in protocols.