What does '0.020 inch undersize' mean for these piston rings?

This means the rings are designed for pistons that are 0.020 inches larger in diameter than the original factory size. This sizing is typically used when an engine's cylinders have been bored out during a rebuild to clean up wear or increase displacement.

Are these rings compatible with all engines from the listed years?

These rings are designed for specific engine families used in the listed vehicles. While they fit many models, it's important to verify that your engine's bore size and piston type match the specifications for this 0.020 inch undersize ring set.

What is the benefit of Mahle's piston ring technology?

Mahle focuses on advanced designs that reduce friction and minimize oil consumption. This can lead to improved engine efficiency and a longer service life for the rings and the engine itself.

Mahle OE Piston Rings 50564CP.020 - Buick Chevy Cadillac

Name: Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set
Brand: Mahle OE
Price: 50.33 USD
Availability: InStock

Mahle Rings Buick 301350L Eng 77-79 Checker 327350 Eng 69-79 Chevy Plain Ring Set

$50.33

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle OE piston rings for Buick, Chevy, and Cadillac engines. These are 0.020 inch undersize for engine rebuilding.

Key Features

Fits 167+ vehicle make/model combinations.
Mahle OE piston rings are 0.020 inch undersize.
Designed to reduce friction and oil consumption.
Built to meet original equipment requirements.
Aims for longer service life.
Suitable for engine rebuilding applications.

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Will this fit your vehicle?

Product Details

These Mahle OE piston rings are 0.020 inch undersize, meaning they are designed for engines that have been bored out during a rebuild. Mahle is known for making technically advanced rings that help reduce friction and oil consumption while aiming for a longer service life. They are built to meet original equipment requirements, so you can expect them to perform reliably in a wide range of vehicles. You'll find these rings fit many Buick, Chevrolet, and Cadillac models from the late 70s through the mid-80s, including popular vehicles like the Buick LeSabre, Chevrolet C10, and Cadillac DeVille.

When you're rebuilding an engine, the piston rings are a critical component for sealing the combustion chamber and controlling oil. Mahle focuses on reducing ring mass and friction, which can contribute to improved engine efficiency and performance. Because these are designed to OE specifications, they are a solid option for restoring your engine's health and ensuring it runs smoothly for years to come. This set is specifically sized for engines that have been machined to a 0.020 inch oversize.