What is the compression ratio of these pistons?

These pistons are designed to achieve an 8.5:1 compression ratio. The piston dish volume is -17.4 cc, which contributes to this specific ratio when paired with the appropriate cylinder heads and gasket combination.

Are these pistons coated?

Depending on the specific application, these pistons may feature a skirt coating. This coating is designed to reduce friction and wear on the piston skirts and cylinder walls, while also helping to lower operating noise.

What is the benefit of the FSR forging design?

The proprietary Forged Side Relief (FSR) design helps minimize friction and power loss. It achieves this through a reduced skirt width and a shorter wrist pin, which also contributes to saving weight.

JE Pistons 314411 Forged Piston Set - Coyote 5.0 Modular

Name: JE Pistons COYOTE 5.0 MODULAR 8.5:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-coyote-5-0-modular-8-5-1-set-of-8-pistons-t14-296412
Price: 950.07 USD
Availability: BackOrder

JE Pistons COYOTE 5.0 MODULAR 8.5:1 Set of 8 Pistons

$950.07

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 314411 forged piston set for Coyote 5.0 Modular engines. Features proprietary FSR forging design for reduced friction and weight.

Key Features

Fits Coyote 5.0 Modular engines.
Set includes 8 forged pistons.
Features a 3.630 inch bore and 8.5:1 compression ratio.
Uses proprietary Forged Side Relief (FSR) forging design to minimize friction and power loss.
Constructed from 2618 aluminum for high tensile strength in performance applications.
Forged, machined, and assembled 100% in the USA.

This piston set is designed for the Coyote 5.0 Modular engine. Please verify compatibility with your specific vehicle and engine build before purchase.

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Product Details

Forged from 2618 aluminum, these JE Pistons are built for high-demand performance applications. They are specifically designed for the Coyote 5.0 Modular engine, aiming for an optimized balance of performance and durability. This set includes eight pistons, each featuring a 3.630-inch bore and a compression ratio of 8.5:1, with a dish volume of -17.4 cc to help achieve that specific ratio.

JE Pistons utilizes their proprietary Forged Side Relief (FSR) forging design, which helps minimize friction and power loss by reducing skirt width. This design also saves weight with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to reduce combustion gas pressure, which helps prevent ring flutter and improves ring seal for consistent power delivery. Some applications also feature a skirt coating designed to reduce friction and wear on the piston skirts and cylinder walls, while also lowering operating noise.

Every component in this set is forged and machined 100% in the USA, reflecting JE Pistons' over 75 years of experience in creating high-performance forged pistons. It's important to note that this piston set is not CARB approved and cannot be shipped to California. For optimal installation and performance, always refer to the manufacturer's detailed specifications and recommended build procedures.