Mahle Rings GM 370-389 58-66 Plain Ring Set

If you're rebuilding the engine in a classic GM vehicle from the late 50s through the mid-60s, getting the piston rings right is key to a healthy rebuild. These Mahle OE piston rings are made for GM 370-389 cubic inch engines, covering a range of popular models like the Pontiac Bonneville, Catalina, and GTO, as well as some DeSoto and Plymouth models from 1958. They're designed to minimize friction and oil consumption, which helps your engine run smoother and last longer.

Mahle has a reputation for making well-built engine components, and these rings are no exception. They focus on reducing friction and ring mass, which not only helps with oil control but also contributes to better overall engine performance and efficiency. This set is specifically sized at 0.030 inches undersize, ensuring a precise fit for engines that have been bored out to match. Getting the right fit is crucial for proper sealing and preventing blow-by.