What material are these pistons made from?

These pistons are forged in the USA from 2618 aluminum. This material is chosen for its high tensile strength, which is necessary for high-performance engine applications.

What is the purpose of the Forged Side Relief (FSR) design?

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

Are these pistons compatible with all 427 Big Block Ford engines?

These pistons are designed specifically for the 427 BBF engine. However, it is always recommended to check the manufacturer's fitment data and your specific engine build details to ensure complete compatibility.

JE Pistons 427 BBF Flat Top Piston Set 242933

Name: JE Pistons 427 BBF FLAT TOP Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-427-bbf-flat-top-set-of-8-pistons-t14-295556
Price: 950.07 USD
Availability: BackOrder

JE Pistons 427 BBF FLAT TOP 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.

This is a set of 8 forged pistons for a 427 BBF engine, featuring a flat top design.

Key Features

This is a set of 8 pistons for a 427 Big Block Ford (BBF) engine.
The pistons have a flat top design.
Forged in the USA using 2618 aluminum for high tensile strength.
Features a proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes a 4.250 inch bore size.
The wrist pin size is 0.990 inches.

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Product Details

This product is a set of eight JE Pistons designed for a 427 Big Block Ford (BBF) engine. You get eight flat-top pistons, each forged in the USA from 2618 aluminum, a material known for its high tensile strength, which is crucial for high-demand performance applications. These pistons are specifically made for the 427 BBF engine, aiming for an optimal balance of durability and performance.

JE Pistons has applied over 75 years of experience to create these forged pistons. They feature a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, saving weight. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, preventing ring flutter and improving ring seal for consistent power. Some applications also feature a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, which can also help lower operating noise.

These pistons are made 100% in the USA. Please note that this set is not CARB approved and cannot be shipped to California. It's important to check manufacturer fitment data to confirm compatibility with your specific vehicle and engine build.