Piston Ring Set 3.780 1.5 1.5 3.0MM

The Hastings Piston Ring Set 3.780 1.5 1.5 3.0MM is a precision-engineered assembly designed for high-performance and stock engine rebuilds. This ring set is essential for mechanics and engine builders restoring cylinder bore integrity, controlling blow-by gases, and managing oil consumption in demanding automotive applications. Proper piston ring selection is critical for long-term engine durability and performance.

This Hastings ring set features a 3.780-inch bore diameter with a 1.5mm top compression ring, 1.5mm second compression ring, and 3.0mm oil control ring. This geometry provides balanced ring tension and oil film consistency across the piston skirt. The staggered ring gaps and calculated back clearances minimize compression leakage while maintaining stable oil scraping action against the cylinder wall.

Engine builders and do-it-yourself mechanics rely on this ring set for applications where OEM-equivalent or performance-oriented replacements are required. The 3.780-inch bore dimension is commonly found in various V8 and inline engines, making this set a versatile choice for rebuilds. Hastings rings are manufactured to exacting tolerances using premium cast iron and specialized coatings, ensuring rapid seating during break-in and extended service life.