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

File-fit rings need to be gapped to your specific cylinder bore size before installation. This allows for a precise fit and optimal sealing, which is important for engine performance. You will need a ring gapper tool for this process.

What materials are the top and oil rings made from?

The top ring is made from ductile iron plasmy moly, and the oil ring is constructed from carbon steel chrome. These materials are chosen for their sealing capabilities and durability in engine applications.

Are these rings suitable for all engine builds?

JE Pistons offers a wide selection of ring sizes and configurations. While this set is designed for 8-cylinder engines, you should always verify that the specific dimensions and type match your engine's requirements and your build goals.

JE Pistons Piston Ring Set J61908-4125-5

Name: JE Pistons Ring Sets 1.5-1.5-3.0-104.902
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-5-1-5-3-0-104-902-t14-297134
Price: 269.99 USD
Availability: BackOrder

JE Pistons Ring Sets 1.5-1.5-3.0-104.902

$269.99

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 1.5-1.5-3.0-104.902. Designed to maximize horsepower through precise combustion sealing.

Key Features

Fits 8-cylinder engines.
File-fit design allows for custom gapping to your cylinder bore.
Top ring is 0.0591 inch ductile iron plasmy moly for effective sealing.
Second ring is 0.0591 inch iron phosphate.
Oil ring is 0.1181 inch carbon steel chrome with low tension.
Designed to maximize horsepower through precise combustion 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

Secure CheckoutFast Shipping631-982-0042

Product Details

When you're rebuilding the top end of your engine, getting the piston rings seated right is crucial for performance and longevity. These JE Pistons ring sets are built to ensure a tight seal against the cylinder wall, which is key to holding combustion pressure and getting the most power out of your engine. They come in a wide variety of sizes and configurations to match different engine builds.

This particular set features a 0.0591-inch ductile iron plasmy moly top ring, designed for good sealing and durability. The second ring is also 0.0591-inch iron phosphate, and the oil ring is a low-tension 0.1181-inch carbon steel chrome unit. These rings are file-fit, meaning you'll need to gap them to your specific cylinder bore for optimal performance. JE Pistons uses the same techniques for these rings that top racing teams rely on, aiming for improved durability and reduced friction.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. You'll need to ensure you have the correct tools for gapping the rings before installation.