SKU: TOTCR6490-45
MPN: CR6490 45
The Piston Ring Set 4.360 Classic 1/16 1/16 3/16 from Total Seal is purpose-built for high-performance engine builders and mechanics working on naturally aspirated and boosted small-block platforms. This file-fit ring kit is engineered for classic race applications where precision compression control, blow-by reduction, and cylinder wall sealing directly impact horsepower, reliability, and longevity. Whether you're assembling a vintage muscle car engine, a competition platform, or a street performance build, Total Seal's plasma-moly coated rings deliver the repeatability and durability serious enthusiasts demand.
Each ring in this eight-cylinder kit features a 1/16 inch top ring, 1/16 inch second ring, and 3/16 inch oil ring—a proven geometry that balances gas sealing with oil control across the piston travel envelope. The ductile iron construction combined with plasma-moly facing provides superior scuff resistance, thermal stability, and extended service life compared to standard chrome-plated alternatives. Total Seal's standard tension specification ensures consistent radial pressure without excessive cylinder wall loading, reducing friction losses while maintaining adequate sealing at both peak combustion pressures and low-RPM operation. The 4.360 inch bore sizing matches common small-block rebuilds and custom engine applications, making this kit a versatile choice for both stock-displacement and overbore combinations.
This file-fit ring set is ideal for builders who prefer hand-fitting rings to individual piston and cylinder tolerances, allowing optimization for specific machining clearances and ring groove dimensions. Installation requires careful end-gap measurement and circumferential fitting to ensure proper function across a wide temperature and load range. The kit accommodates all eight cylinders in a single package, simplifying ordering and guaranteeing matched ring sets throughout the engine. For vintage race engines, street performance builds, or any application demanding precision compression management, the Total Seal Piston Ring Set 4.360 Classic delivers proven results backed by decades of racing heritage.
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