What is the compression ratio for these pistons?

These JE Pistons feature a 9.5:1 compression ratio. This is achieved through the inverted dome design and the specific dimensions of the piston kit.

Are these pistons compatible with all Coyote 5.0 engines?

This piston set is designed for Coyote 5.0 Modular engines. It is important to verify the specific bore size (3.630 inches) and compression distance (1.174 inches) against your engine's requirements.

What does the Forged Side Relief (FSR) design do?

The FSR design is a proprietary forging from JE Pistons that helps minimize friction and power loss. It achieves this through a reduced skirt width and a shorter wrist pin, which also contributes to weight savings.

JE Pistons Forged Piston Set 314415 - Coyote 5.0 Modular

Name: JE Pistons COYOTE 5.0 MODULAR 9.5:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-coyote-5-0-modular-9-5-1-set-of-8-pistons-t14-296416
Price: 950.07 USD
Availability: BackOrder

JE Pistons COYOTE 5.0 MODULAR 9.5:1 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 COYOTE 5.0 MODULAR 9.5:1 Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

Set of 8 forged pistons for Coyote 5.0 Modular engines.
Constructed from 2618 aluminum for high tensile strength in performance applications.
Features an inverted dome design with a 9.5:1 compression ratio.
Designed with a 3.630-inch bore size.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Includes a 0.866-inch pin diameter and a 1.174-inch compression distance.

This piston set is designed for Coyote 5.0 Modular engines. Please verify compatibility with your specific engine build.

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Product Details

Forged in the USA from 2618 aluminum, these JE Pistons are built for high-demand performance applications like your Coyote 5.0 Modular engine. This set of 8 pistons features an inverted dome design with a 9.5:1 compression ratio, and a 3.630-inch bore size. JE Pistons brings over 75 years of experience to the table, engineering and machining these pistons entirely in the USA to offer a durable and high-performing option for your build.

The proprietary Forged Side Relief (FSR) forging design is a notable feature that helps minimize friction and power loss by using a reduced skirt width. This design also saves weight by incorporating 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. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

This piston kit is designed specifically for the engine and its intended use, aiming for optimized performance and durability. Please note that this part is not CARB approved and cannot be shipped to California. It's always a good idea to consult your engine builder or refer to JE Pistons' installation guidelines for proper fitment and assembly procedures.