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

File-fit rings are not pre-sized to a specific bore diameter. You will need to carefully file the ends of the rings to achieve the correct gap for your engine's cylinder bore. This allows for a custom fit and optimal sealing.

What is the purpose of the phosphate coating on the top and second rings?

The phosphate coating on the top and second rings helps with initial break-in and improves the ring's ability to seal against the cylinder wall. It also offers some protection against corrosion.

Are these rings suitable for all 8-cylinder engines?

These rings are designed for 8-cylinder engines and come in specific dimensions (1/16-1/16-3/16). However, because they are file-fit, they can be adjusted to fit a range of cylinder bores. Always confirm the dimensions and fitment requirements for your specific engine build.

JE Pistons Piston Ring Set J820F8-4155-5

Name: JE Pistons Ring Sets 1/16-1/16-3/16 RINGS
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-16-1-16-3-16-rings-t14-297507
Price: 230.99 USD
Availability: InStock

JE Pistons Ring Sets 1/16-1/16-3/16 RINGS

$230.99

Only 1 left in stock

JE Pistons ring set, part J820F8-4155-5. Features 1/16-1/16-3/16 ring sizes for improved engine sealing.

Key Features

Fits 8-cylinder engines.
Features 1/16-inch top ring, 1/16-inch second ring, and 3/16-inch oil ring.
Top and second rings are hard ductile iron with phosphate coating.
Oil ring is carbon steel with a chrome finish.
Standard tension oil ring design.
File-fit rings require precise installation for optimal performance.

This ring set is designed for 8-cylinder engines. File-fit rings require precise installation to match the specific bore of your cylinders.

⚠️ 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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Product Details

This is a JE Pistons ring set, part number J820F8-4155-5, designed for 8-cylinder engines. These rings are crucial for sealing the combustion chamber, which helps maximize horsepower and ensure your engine runs efficiently. They feature a 1/16-inch top ring, a 1/16-inch second ring, and a 3/16-inch oil ring, all file-fit for a precise installation.

The top and second rings are made from hard ductile iron with a phosphate coating for durability and improved sealing. The oil ring is constructed from carbon steel with a chrome finish, designed for standard tension to effectively control oil in the cylinder. JE Pistons uses the same techniques for these rings that top racing teams employ, aiming for reduced friction and better durability.

Because these are file-fit rings, they require careful installation to ensure they match the bore of your cylinders perfectly. This allows for optimal performance and longevity. Please note that this part is not CARB approved and cannot be shipped to California.