What is the purpose of file-fit piston rings?

File-fit rings are designed to be custom-gapped to the specific cylinder bore of your engine during installation. This allows for a more precise seal, which is crucial for maximizing horsepower and ensuring proper engine performance, especially in modified or performance applications.

What materials are used in this piston ring set?

This set features a carbon steel nitride top ring and oil ring, along with a ductile iron phosphate second ring. These materials are selected for their strength, heat resistance, and ability to create a tight seal against the cylinder wall under high combustion pressures.

Are these piston rings compatible with all engines?

This specific ring set (JG1004-3701) is designed for 4-cylinder engines. JE Pistons offers a wide variety of ring sets in different sizes, materials, and thicknesses to suit many different engine types and applications.

JE Pistons Piston Ring Set JG1004-3701

Name: JE Pistons Ring Sets 1.0-1.2-2.8-3.701
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-0-1-2-2-8-3-701-t14-298073
Price: 172.88 USD
Availability: BackOrder

JE Pistons Ring Sets 1.0-1.2-2.8-3.701

$172.88

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 JG1004-3701. Designed to seal combustion pressure for maximum horsepower.

Key Features

Fits 4-cylinder engines.
Top ring is 0.0394 inch carbon steel nitride.
Second ring is 0.0472 inch ductile iron phosphate.
Oil ring is 0.1102 inch carbon steel nitride and low tension.
Rings are file-fit, requiring gapping for installation.
Designed to maximize horsepower through precise combustion pressure sealing.

⚠️ 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, part number JG1004-3701, features a 0.0394-inch carbon steel nitride top ring, a 0.0472-inch ductile iron phosphate second ring, and a 0.1102-inch low tension carbon steel nitride oil ring. These rings are file-fit, meaning you'll need to gap them to your specific cylinder bore during installation, a common practice for performance builds to ensure a precise seal.

JE Pistons uses the same ring technology that top NHRA Pro Stock and NASCAR teams rely on. This means you're getting a well-built set that can offer improved durability and reduced friction, leading to better power output. The combination of materials and coatings, like the carbon steel nitride and phosphate treatments, are chosen for their ability to withstand high combustion temperatures and pressures while maintaining a solid seal against the cylinder wall.

This ring set is designed for 4-cylinder engines and is a popular choice for engine rebuilds where performance and reliability are key. Remember that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper gapping and seating procedures.