What is the purpose of piston rings?

Piston rings serve two main jobs: they seal the combustion chamber to prevent gases from leaking past the piston, and they scrape excess oil off the cylinder walls to prevent it from entering the combustion chamber. This ensures efficient engine operation and prevents excessive oil burning.

What does the ring size (1.2mm, 1.2mm, 2.8mm) refer to?

These numbers refer to the thickness of the individual rings. The first two are the compression rings (top and second), and the third is the oil control ring. This specific sizing is common for many engine builds.

Are these rings suitable for all engine rebuilds?

These rings are designed for an 86.25mm bore and a specific ring groove configuration. While popular, it's essential to verify that this size and configuration match your piston specifications and the intended use of your engine build.

Specifications

Brand: Manley Performance
Part #: 46862-4
UPC: 807298091396

Manley Piston Ring, RING-86.25mm 1.2mm,1.2mm,2.8mm

Name: Manley Piston Ring, RING-86.25mm 1.2mm,1.2mm,2.8mm
Brand: Manley Performance
SKU: manley-performance-manley-piston-ring-ring-86-25mm-1-2mm-1-2mm-2-8mm-t14-881467
Price: 184.03 USD
Availability: BackOrder

$184.03

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. Essential for sealing combustion and controlling oil in your engine.

Key Features

Fits pistons with an 86.25mm bore size.
Features a 1.2mm top ring, 1.2mm second ring, and 2.8mm oil ring configuration.
Manley Performance is a well-known brand for internal engine components.
Designed for proper sealing of combustion gases and control of engine oil.
Manufactured to precise tolerances for a good fit in piston grooves and cylinder walls.
Not CARB approved; 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 proper sealing and oil control. These rings from Manley Performance are designed to fit pistons with a bore of 86.25mm, featuring a common 1.2mm top ring, 1.2mm second ring, and a 2.8mm oil ring configuration. This setup is a popular choice for many performance and stock rebuilds, ensuring a good balance between sealing efficiency and oil consumption.

Manley is known for making well-built internal engine components, and these rings are no exception. They are made to precise tolerances to ensure they seat properly against the cylinder wall and piston groove, which is key for both power and longevity. Proper ring tension and material selection help manage heat and pressure within the combustion chamber, contributing to the overall health and performance of your engine.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine's service manual for installation procedures and any required break-in steps to ensure optimal performance and durability.