Piston Ring Set 4.160 5/64 5/64 3/16

The Hastings Piston Ring Set 4.160 5/64 5/64 3/16 (SKU: HAS2M644040) is a complete ring kit designed for eight-cylinder engines that require precision bore sizing and standard tension compression. This drop-in piston ring set is ideal for engine builders, machine shops, and automotive enthusiasts performing complete engine overhauls or rebuilds.

Manufactured from steel with a plasma moly coating, this piston ring set reduces friction at the ring face and ring groove while extending ring life under sustained heat and load cycles. The 4.160-inch bore diameter accommodates a wide range of small-block and big-block applications, ensuring consistent ring-to-bore sealing across the full operating temperature range.

With a compression ring thickness of 5/64-inch, a secondary ring thickness of 5/64-inch, and an oil control ring thickness of 3/16-inch, this set provides OEM-correct geometry for proper sealing and gas blow-by control. The standard tension specification means these rings are calibrated for stock-level ring gap clearances, making them a straightforward replacement for original equipment rings.