What is the compression height and wrist pin size for these pistons?

These pistons have a compression height of 1.325 inches and use a 0.990 inch wrist pin. This information is crucial for calculating your engine's compression ratio and ensuring proper piston-to-valve clearance.

What material are these pistons made from and why is it important?

The pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is essential for handling the extreme pressures and temperatures found in high-performance racing engines.

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

These pistons are designed for the 427 BBF engine. However, specific engine builds can vary, so it's always recommended to verify compatibility with your exact engine configuration and consult the manufacturer's detailed specifications.

JE Pistons 427 BBF Flat Top Piston Set 242935

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-t14-295558
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.

JE Pistons 427 BBF FLAT TOP Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

This is a set of 8 pistons for the 427 Big Block Ford (BBF) engine.
The pistons are flat-top design with a 4.310 inch bore.
They are 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 0.990 inch wrist pin.
May include an accumulator groove to reduce combustion gas pressure and improve ring seal.

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Product Details

What you get in this kit is a full set of eight JE Pistons, specifically designed for the 427 Big Block Ford (BBF) engine. These are flat-top pistons, meaning they have a level surface at the top, which is important for determining your compression ratio. They're built with a 4.310-inch bore and include a 0.990-inch wrist pin. This set is engineered to handle serious performance demands.

JE Pistons has been making forged racing pistons for over 75 years, and these are forged right here in the USA from 2618 aluminum. This material gives them the strong tensile strength needed for high-demand performance applications. They feature a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width and saving weight with a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove to help reduce combustion gas pressure, leading to better ring seal and consistent power. Some applications also include a skirt coating that further reduces friction and wear, while also cutting down on operating noise.

These pistons are designed specifically for the 427 BBF engine and its intended use, aiming for an optimized balance of performance and durability. It's worth noting that these pistons are not CARB approved and cannot be shipped to California. If you're building a high-performance 427 BBF, these pistons are a solid option forged and machined entirely in the USA.