Piston Ring Set 4.030 1.2 1.2 3.0mm

The Hastings Piston Ring Set 4.030 1.2 1.2 3.0mm (SKU: HASSN9045035) is designed for builders and mechanics engaged in serious engine rebuilds and performance modifications. Piston rings are essential components that seal combustion pressure, regulate oil consumption, and ensure proper contact with the cylinder walls throughout the engine's operating range.

This Hastings ring set features a 4.030-inch bore diameter, with compression ring thicknesses of 1.2mm and an oil control ring thickness of 3.0mm. This combination of specifications provides a reliable geometry that enhances sealing integrity, reduces blowby, and optimizes oil management for both modern and classic engine applications. Hastings has a long-standing reputation as a trusted OEM and aftermarket supplier, manufacturing rings to precise tolerances using high-quality materials that endure extreme conditions.

Engine builders and technicians often choose this ring set for use in 4.030-inch bore blocks, which are commonly found in small-block Chevrolet, Ford, and Mopar platforms, as well as in custom and performance applications that require precise bore sizing. Selecting the correct ring set is crucial for ensuring engine durability and efficiency, making this product an essential choice for serious automotive projects.