What does the '0.040' in the part number mean?

The '0.040' indicates that this piston ring set is 0.040 inches undersize. This means the pistons they are designed for are also 0.040 inches smaller than standard bore size, typically used when a cylinder bore has been machined to remove wear or damage.

What is the benefit of a moly coating on piston rings?

The moly coating on these Mahle rings helps to reduce friction between the ring and the cylinder wall. This can lead to improved engine efficiency, reduced oil consumption, and a longer service life for both the rings and the cylinder bore, especially during the critical break-in period.

Are these rings suitable for a performance build?

These rings are designed to meet original equipment requirements, focusing on reliability, oil control, and friction reduction for standard engine builds. For high-performance applications, it's always best to consult with an engine builder to ensure the rings meet the specific demands of your build.

Mahle OE Piston Rings 40076CP.040 - Chevy 283/307 Engines

Name: Mahle Rings Checker 283/307 Engs 65-70 Chevy 283/307 Engs 57-73 Chevy Marine Moly Ring Set
Brand: Mahle OE
Price: 114.92 USD
Availability: InStock

Mahle Rings Checker 283/307 Engs 65-70 Chevy 283/307 Engs 57-73 Chevy Marine Moly Ring Set

$114.92

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 Moly Ring Set, 0.040 inch undersize. Fits many Chevy 283/307 engines from 1957-1973.

Key Features

Fits a wide range of vehicles including Bristol 407, Checker Marathon, and Chevrolet Bel Air, Biscayne, Blazer, Camaro, Chevelle, Corvette, El Camino, Impala, and many more.
This is a 0.040 inch undersize piston ring set.
Features a moly coating for reduced friction and improved wear resistance.
Designed to minimize engine oil consumption and friction.
Built to meet original equipment requirements for durability and performance.
Suitable for Chevrolet 283 and 307 cubic inch engines from 1957-1973, and marine applications.

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Will this fit your vehicle?

Product Details

These Mahle Moly piston rings are 0.040 inch undersize, designed for specific Chevrolet 283 and 307 cubic inch engines from the mid-50s through the early 70s. They also fit certain Bristol and Checker models from the same era. Piston rings are crucial for sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall. Mahle's design focuses on reducing friction and ring mass, which can help minimize oil use and contribute to a longer service life for your engine.

Built to meet original equipment requirements, these rings incorporate advanced technology to improve performance and durability. The moly coating on the rings helps reduce friction during break-in and throughout the life of the engine, which is especially important in older engine designs. This set is a solid option when you're rebuilding or refreshing an engine that uses the 283 or 307 V8, common in many classic Chevrolet vehicles like the Bel Air, Impala, Chevelle, and El Camino, as well as some marine applications.