What is the primary function of these top piston rings?

These top piston rings are crucial for sealing the combustion chamber. They prevent combustion gases from escaping past the piston into the crankcase and also help control the amount of oil that reaches the combustion chamber.

Are these rings suitable for a stock engine rebuild or a performance build?

Yes, these ductile iron top rings from Manley are a well-built option suitable for both stock engine rebuilds and more demanding performance applications due to their strength and durability.

What is the significance of the 3.582 inch bore size?

The 3.582 inch bore size is specific to the cylinder diameter of the Ford 4.6L and 5.4L modular engines. Using the correct bore size ensures a proper fit and effective sealing within the cylinder walls.

Specifications

Brand: Manley Performance
Part #: 46630-8
UPC: 807298042312

Manley Ford 4.6L/5.4L SOHC/DOHC (2 & 4 Valve) 3.582in Bore Ductile Iron Top Rings (Set of 8)

Name: Manley Ford 4.6L/5.4L SOHC/DOHC (2 & 4 Valve) 3.582in Bore Ductile Iron Top Rings (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-ford-4-6l-5-4l-sohc-dohc-2-4-valve-3-582in-bore-ductil-t14-252479
Price: 248.05 USD
Availability: InStock

$248.05

Only 1 left in stock

Fits 1996-2008 Ford Mustang. Manley ductile iron top piston rings for 4.6L/5.4L engines. Essential for engine rebuilds and performance upgrades.

Key Features

Fits 1996-2008 Ford Mustang, 1997-2003 and 2005-2008 Ford F-150, 2006-2008 Ford F-250/F-350 Super Duty, and 2005-2006 Ford GT.
Designed for Ford 4.6L and 5.4L SOHC/DOHC (2 and 4 valve) engines.
Features a 3.582 inch bore size, specific to these Ford modular engines.
Constructed from ductile iron for strength and durability.
Includes eight top rings, sufficient for a complete V8 engine.
Essential for engine rebuilds and performance upgrades.

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About this part

Product Details

If you're rebuilding the engine in your 1996-2008 Ford Mustang, especially if you're looking to get more out of your 4.6L or 5.4L SOHC/DOHC engine, a fresh set of piston rings is a critical component. These top rings from Manley are made from ductile iron, a material known for its strength and durability, making them a solid choice for both stock rebuilds and modified applications. They are designed to seal the combustion chamber effectively, ensuring that combustion pressure is used to drive the pistons rather than escaping past them, which is key for both power and efficiency.

Manley has a strong reputation in the performance engine parts world, and these rings reflect that. The 3.582-inch bore size is specific to the Ford modular engines, ensuring a proper fit within the cylinder bore. Proper ring seal is vital for preventing oil from entering the combustion chamber and for maintaining consistent compression. This set includes eight top rings, enough for a complete V8 engine rebuild. They are a well-built part that will stand up to the demands of your engine.

When installing these rings, it's important to ensure the cylinder walls are properly honed and clean, and that the rings are gapped correctly for your specific application according to Manley's recommendations. This attention to detail during installation will help ensure optimal performance and longevity from your engine rebuild.