Piston Ring Set 4.445 Bore 1.5 1.5 3.0mm

The Piston Ring Set 4.445 Bore 1.5 1.5 3.0mm from MAHLE PISTONS is designed for high-performance engine rebuilds and custom automotive applications. This ring set is specifically engineered for precise bore sizing at 4.445 inches, making it suitable for stroker builds, racing engines, and significant power modifications.

MAHLE's piston rings are manufactured using premium cast iron and specialized alloys that can withstand elevated combustion pressures and temperature cycling found in modified engines. The configuration includes a 1.5mm compression ring, a 1.5mm secondary compression ring, and a 3.0mm oil control ring, which optimizes sealing geometry while minimizing friction losses—essential for both naturally aspirated and forced-induction applications.

This piston ring set is ideal for builders working on small-block applications, big-block performance engines, and custom displacement builds where OEM rings may not meet specifications. Proper installation requires setting the ring gap and verifying piston-to-bore clearance during assembly to ensure optimal performance and longevity.