Engine Piston Ring Set (81.50 mm 0.50 Oversize) for Toyota Corolla 1.6 4A-F / 4A-FE

High-performance engine piston ring set with an 81.50 mm (0.50 mm Oversize) diameter, specifically engineered for Toyota Corolla models (1988-1993) equipped with the 1.6L 4A-F and 4A-FE engines. These rings are designed for engines undergoing professional cylinder boring and reconditioning to 0.50 mm over standard. Manufactured from premium-grade, heat-resistant materials to withstand the mechanical stresses of Toyota's A-series powerplants. Precision-machined to ensure superior oil control and cylinder sealing, effectively preventing blow-by and oil consumption while restoring original engine torque and fuel efficiency in rebuilt units.