Manley Sport Compact 85.0mm Bore Drop In 1.2mm x 1.2mm x 2.8mm Standard Ring (SINGLE)

These Manley Sport Compact piston rings are built with a standard 1.2mm top ring, 1.2mm second ring, and a 2.8mm oil ring, designed for an 85.0mm bore. This specific ring set is a popular choice for builders looking for a well-built, direct replacement option for many sport compact engines. The dimensions are chosen to work well with common piston designs in this class, ensuring a good seal and efficient oil control.

Manley has a solid reputation for making strong internal engine components, and these rings are no exception. They are made to handle the demands of performance applications, providing a reliable seal between the piston and cylinder wall. This helps maintain compression and prevent blow-by, which is crucial for engine performance and longevity. While these are a standard size, they are a step up from basic cast iron rings, offering improved durability for engines that see more than just daily driving.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper ring gap setting and seating procedures to get the best performance and life out of them.