What does 'file-fit' mean for these piston rings?

File-fit means the top compression ring is supplied slightly oversized and needs to be filed down to achieve the correct end gap for your specific engine's cylinder bore. This allows for precise tuning of the gap based on your engine's build and intended use.

Are these rings suitable for a high-performance or boosted engine?

These are standard tension rings, which are a popular choice for many engine rebuilds. While they offer solid sealing and durability for stock or mildly modified engines, they may not be the ideal choice for extreme boost applications where higher tension rings might be preferred.

What is the Prop 65 warning about?

The Prop 65 warning indicates that the product contains chemicals known to the state of California to cause cancer or reproductive harm. This is a state-specific labeling requirement and does not necessarily reflect a risk outside of California.

Specifications

Brand: Manley Performance
Part #: 46630ST-8
UPC: 807298072371

Manley Ford 4.6L/5.4L (2 & 4 Valve) 3.582in File Fit 1.5 mm x 1.5 mm x 3 mm Std Tension Rings

Name: Manley Ford 4.6L/5.4L (2 & 4 Valve) 3.582in File Fit 1.5 mm x 1.5 mm x 3 mm Std Tension Rings
Brand: Manley Performance
SKU: manley-performance-manley-ford-4-6l-5-4l-2-4-valve-3-582in-file-fit-1-5-mm-x-1-5-t14-4337117
Price: 350.59 USD
Availability: InStock

$350.59

Only 3 left in stock

Manley Ford 4.6L/5.4L (2 & 4 Valve) 3.582in piston rings. Standard tension rings for engine rebuilds.

Key Features

Fits Ford 4.6L and 5.4L engines (2 & 4 Valve).
Bore size is 3.582 inches.
Features a 1.5mm top ring, 1.5mm second ring, and 3mm oil ring.
Standard tension design for reliable sealing.
File-fit installation requires gapping the top ring.
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

These Manley piston rings are built with a standard tension design, featuring a 1.5mm top ring, 1.5mm second ring, and a 3mm oil ring. The 3.582-inch bore size is specific for Ford 4.6L and 5.4L engines, covering both 2-valve and 4-valve configurations. This set is designed for a file-fit installation, meaning you'll need to gap the top ring to your specific engine build for optimal performance and sealing.

Manley Performance is known for making well-built engine components, and this ring set is no exception. The standard tension design is a popular choice for many engine rebuilds where extreme boost pressures aren't the primary concern, offering a solid balance of sealing and durability. Proper gapping during installation is crucial for these rings to ensure they perform as intended, helping to maintain compression and control oil consumption.

When rebuilding your Ford 4.6L or 5.4L engine, choosing the right piston rings is important for the overall health and longevity of the powerplant. This Manley set offers a direct replacement option for stock configurations or a reliable choice for mild performance builds. Remember that these rings are not CARB approved and cannot be shipped to California.