What is the purpose of piston rings?

Piston rings have three main jobs: they seal the combustion chamber to prevent gases from escaping, they regulate oil consumption by scraping excess oil off the cylinder walls, and they help transfer heat from the piston to the cylinder wall for cooling.

Why is the top ring made of steel in this set?

A steel top ring is chosen for its strength and ability to withstand high temperatures and pressures found in the combustion chamber. This helps maintain a good seal even under demanding conditions.

Are these piston rings suitable for all engine rebuilds?

These rings are designed for a specific bore size (4.065 inches) and feature a steel top ring, making them suitable for many performance and heavy-duty applications. However, they are not CARB approved and cannot be shipped to California.

Specifications

Brand: Manley Performance
Part #: 46016ST-8
UPC: 807298095660

Manley PISTON RING Bore-4.065 1.2mm x 1.2mm x 3mm STL TOP

Name: Manley PISTON RING Bore-4.065 1.2mm x 1.2mm x 3mm STL TOP
Brand: Manley Performance
SKU: manley-performance-manley-piston-ring-bore-4-065-1-2mm-x-1-2mm-x-3mm-stl-top-t14-114352
Price: 456.63 USD
Availability: BackOrder

$456.63

On Backorder

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

Manley Piston Ring Set for 4.065" bore. STL TOP design. Essential for engine rebuilds.

Key Features

Fits engines with a 4.065 inch bore.
Features a steel top ring for strength and durability.
Includes 1.2mm top and second rings.
Features a 3mm oil ring for effective oil control.
Manley Performance is a popular brand in the automotive aftermarket.
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

When you're rebuilding the top end of your engine and need reliable piston rings, this set from Manley Performance is a solid choice. These rings are designed for a 4.065-inch bore, a common size in many performance and heavy-duty applications. They play a crucial role in sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall, all of which are vital for engine health and performance.

This particular set features a steel top ring, known for its strength and durability, especially under high combustion pressures. The ring dimensions are 1.2mm for the top and second rings, and 3mm for the oil ring. This specific sizing and material choice helps ensure a good seal and efficient oil control, contributing to the overall longevity and efficiency of your rebuilt engine. Manley Performance is a well-known name in the performance parts world, and these rings reflect their commitment to well-built components.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper ring gap setting and installation procedures to ensure optimal performance and engine protection.