What is the primary function of piston rings?

Piston rings have a few key jobs. They seal the combustion chamber to prevent gases from leaking past the piston, they help transfer heat from the piston to the cylinder wall, and they also help control the amount of oil that reaches the cylinder walls.

What does '3.905in Bore' mean for my engine?

The bore size indicates the diameter of the cylinder. This ring set is specifically made to fit pistons designed for a 3.905 inch cylinder bore diameter, which is common for certain Small Block Chevrolet LS engine configurations.

Why are these rings not CARB approved?

Some engine components are not approved by the California Air Resources Board (CARB) due to emissions standards. This means they cannot be legally sold or installed on vehicles registered in California.

Specifications

Brand: Manley Performance
Part #: 46107-8
UPC: 807298042237

Manley Small Block Chevrolet LS Series 3.905in Bore -4cc Flat Top Ductile Iron Piston Ring Set

Name: Manley Small Block Chevrolet LS Series 3.905in Bore -4cc Flat Top Ductile Iron Piston Ring Set
Brand: Manley Performance
SKU: manley-performance-manley-small-block-chevrolet-ls-series-3-905in-bore-4cc-flat--t14-271530
Price: 276.80 USD
Availability: BackOrder

$276.80

On Backorder

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

Manley LS Series piston ring set for Small Block Chevrolet. 3.905in bore, -4cc flat top ductile iron.

Key Features

Fits Small Block Chevrolet LS Series engines with a 3.905 inch bore.
Features a -4cc flat top piston design.
Constructed from durable ductile iron for strength and longevity.
Designed for optimal sealing between piston and cylinder wall.
Manley Performance is a well-known brand for engine components.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

When you're rebuilding the top end of your Small Block Chevrolet LS engine, getting the right piston rings is crucial for sealing and performance. This set from Manley Performance is built for a 3.905 inch bore and features -4cc flat top pistons, designed to work with specific cylinder head configurations for optimal compression. They are made from ductile iron, a material known for its strength and durability under the stresses of combustion.

Manley Performance has a solid reputation for making well-built engine components, and these piston rings are no exception. The ductile iron construction means they can handle the heat and pressure inside your engine, helping to ensure a good seal between the piston and cylinder wall. This is key for preventing blow-by, which can rob your engine of power and efficiency. This set is intended for specific LS engine builds where a flat top piston with a -4cc dish is specified.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine build plans and manufacturer instructions to ensure these rings are the correct choice for your project.