What is the purpose of piston rings?

Piston rings serve two main jobs: they seal the combustion chamber to prevent gases from escaping past the piston, and they help control the amount of oil on the cylinder wall. This ensures efficient engine operation and lubrication.

Are these rings suitable for all engine builds?

These rings are designed for a specific bore size (4.000 inches) and ring groove dimensions (1/16" top, 3/16" oil). They are a popular choice for performance and heavy-duty applications, but always verify they match your piston specifications.

Why are these rings not CARB approved?

This product is not approved by the California Air Resources Board (CARB) and therefore cannot be shipped to California. This is a regulatory compliance issue and does not reflect the quality of the part itself.

Specifications

Brand: Manley Performance
Part #: 46350-8
UPC: 807298085142

Manley Piston Ring, RING-4.000 1/16,3/16

Name: Manley Piston Ring, RING-4.000 1/16,3/16
Brand: Manley Performance
SKU: manley-performance-manley-piston-ring-ring-4-000-1-16-3-16-t14-881701
Price: 202.98 USD
Availability: BackOrder

$202.98

On Backorder

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

Manley Performance piston ring set for 4.000" bore engines. Essential for proper engine sealing and oil control.

Key Features

Fits 4.000 inch bore engines.
Features a 1/16 inch top ring and a 3/16 inch oil ring.
Designed for proper combustion chamber sealing and oil control.
Well-built by Manley Performance for engine rebuilds.
Not CARB approved and cannot ship to California.

⚠️ 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

If you're rebuilding the top end of your engine, getting the right piston rings is crucial for sealing the combustion chamber and controlling oil. These Manley Performance rings are designed for a 4.000 inch bore, with a 1/16 inch top ring and a 3/16 inch oil ring. This specific sizing is common in many performance and heavy-duty applications, ensuring a tight seal that helps your engine make good power and run efficiently.

Manley is known for making well-built engine components, and these rings are no exception. They're made to handle the demands of an engine rebuild, providing reliable performance. Proper installation is key here; making sure the rings are seated correctly in the piston grooves and that the end gaps are set to the manufacturer's specifications will ensure they function as intended, preventing blow-by and excessive oil consumption. This set is a solid option for anyone looking to restore or enhance their engine's internal health.