Piston Ring Set 4.350 1/16 1/16 3/16

The Piston Ring Set 4.350 1/16 1/16 3/16 by Sealed Power is an OEM-quality engine component designed for eight-cylinder engines requiring precise bore specifications and reliable compression sealing. This file-fit piston ring kit is engineered for mechanics, engine rebuilders, and performance enthusiasts who demand exact fitment and consistent performance across rebuild or restoration projects. Low-tension design reduces friction during cold starts while maintaining effective ring seal throughout the combustion cycle.

Manufactured from ductile iron with plasma moly coating, this ring set delivers superior wear resistance and extended service life under high-stress conditions. The plasma moly surface treatment significantly reduces friction between rings and cylinder walls, improving fuel efficiency and reducing blow-by during operation. The specific ring stack height configuration—1/16 inch compression ring, 1/16 inch secondary compression ring, and 3/16 inch oil control ring—is precision-engineered to fit 4.350-inch bore engines and demands file fitting during installation to ensure correct end-gap clearance for your particular block.

This complete eight-cylinder kit suits rebuilders restoring classic muscle cars, marine engines, or industrial powerplants where exact bore diameter and ring specification are critical to engine longevity. Installation requires proper honing preparation and careful end-gap filing to match individual bore specifications; improper gap sizing can result in ring breakage or loss of compression. Sealed Power's reputation for OEM-level quality makes this ring set the preferred choice for professional rebuilds where reliability cannot be compromised.