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

File-fit rings need to be individually gapped to match the specific clearance of your engine's cylinder bore. This ensures a proper seal and prevents the rings from butting together under heat. You'll need a ring-gapping tool and a micrometer for this process.

What are the benefits of plasma moly and iron phosphate coatings?

The plasma moly coating on the top ring helps reduce friction and wear, improving durability and sealing. The iron phosphate coating on the second ring also enhances wear resistance and provides a good surface for oil retention.

Can these rings be used in a high-performance engine build?

Yes, JE Pistons offers custom services like those used by professional racing teams, indicating their rings are suitable for performance applications. The file-fit nature allows for precise tuning to your specific engine build for optimal sealing and power.

JE Pistons Piston Ring Set S100S8-4500-5

Name: JE Pistons Ring Sets 1/16-1/16-3/16 ECONO
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-16-1-16-3-16-econo-t14-298272
Price: 124.99 USD
Availability: BackOrder

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

$124.99

On Backorder

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

JE Pistons Ring Sets 1/16-1/16-3/16 ECONO. These rings help seal combustion pressure for improved horsepower.

Key Features

Fits 8-cylinder engines.
Top ring is 1/16 inch ductile iron with plasma moly coating.
Second ring is 1/16 inch iron phosphate.
Oil ring is 3/16 inch carbon steel chrome standard tension.
Rings are file-fit, requiring gapping to the cylinder bore.
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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Product Details

JE Pistons Ring Sets are built to seal combustion pressure effectively, which helps maximize horsepower. This particular set, the ECONO series, features specific ring thicknesses: a 1/16-inch top ring, a 1/16-inch second ring, and a 3/16-inch oil ring. These dimensions are chosen to work with a wide variety of engines, and JE Pistons offers many other sizes and materials if your build requires something different.

The top ring is made from ductile iron with a plasma moly coating for durability and good sealing. The second ring is also ductile iron, phosphate coated for improved wear resistance. For the oil ring, this set uses a carbon steel chrome standard tension ring, designed to manage oil effectively and maintain consistent tension.

These rings are file-fit, meaning you'll need to gap them to your specific cylinder bore during installation. This is a common practice for performance builds to ensure the best possible seal and prevent piston slap. Keep in mind that this part is not CARB approved and cannot be shipped to California.