Mahle Rings GMC Pass 273 4.5L Eng 88-92 300 4.9L Eng 91-94 Moly Ring Set

These Mahle piston rings are made with a moly coating, a tough material that helps reduce friction and wear. They're built to meet the demands of OE requirements, meaning they're designed to minimize oil consumption and give you a longer service life from your engine. If you're rebuilding the top end of your engine, these rings are a solid choice for a range of vehicles, including models like the Cadillac DeVille and Fleetwood from the late 80s and early 90s.

Mahle is known for bringing advanced piston ring technology to the aftermarket. This set is designed to reduce friction, which can lead to improved engine efficiency and a smoother running motor. By minimizing oil consumption, these rings also help keep your exhaust cleaner and reduce the need for frequent oil top-offs. The 0.020 undersize specification means these rings are intended for engines that have been bored out by 0.020 inches during a rebuild.