Piston Ring Set 3.898 1.5 1.5 3.0MM

The Piston Ring Set 3.898 1.5 1.5 3.0MM from HASTINGS (MPN SM8555) is an OEM-quality replacement component designed for engines with a 3.898-inch bore diameter. This set is ideal for mechanics engaged in rebuilding stock engines, restoring classic vehicles, or performing preventive maintenance on high-mileage blocks. It aims to restore proper ring-to-bore fit and combustion chamber integrity.

This piston ring set features a precision-ground 1.5MM top compression ring, a 1.5MM second compression ring, and a 3.0MM oil control ring, all sized to match a 3.898-inch piston crown. The dual compression ring design enhances blow-by control and ring sealing efficiency across the RPM range, while the thicker oil ring effectively manages crankcase ventilation and prevents oil carryover into the combustion chamber. HASTINGS manufactures these rings to strict tolerances using high-strength cast iron, ensuring durability under sustained load and heat cycling.

Engine builders and restoration specialists rely on HASTINGS ring sets for bore sizes in the 3.898-inch range, commonly found in classic V8 platforms. This piston ring set is essential for maintaining engine performance and longevity, making it a valuable addition to any mechanic's toolkit.