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

These pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is essential for components in high-demand performance engines that experience significant stress and heat.

What is the Forged Side Relief (FSR) design?

The FSR design is a proprietary feature 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 saving weight.

Are these pistons compatible with all 400 SBC engines?

This set is designed for 400 SBC engines with a 4.125 inch bore, a 1.250 inch compression distance, and a 0.927 inch pin. It's important to confirm these specific dimensions match your engine's requirements, as variations can exist.

JE Pistons Forged Piston Set 281797 - 400 SBC

Name: JE Pistons 400SBC ALLPRO/GB2000 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400sbc-allpro-gb2000-set-of-8-pistons-t14-295841
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 400SBC ALLPRO/GB2000 Set of 8 Pistons

$1129.82

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 400SBC ALLPRO/GB2000 Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

Fits 400 SBC engines with a 4.125 inch bore.
Set includes 8 forged pistons.
Constructed from 2618 aluminum for high tensile strength in performance applications.
Features proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes a dome top piston design.
Designed specifically for each engine and use application for optimized performance and durability.

This piston set is designed for 400 SBC engines. Please verify compatibility with your specific engine build.

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Product Details

JE Pistons is known for making well-built forged racing pistons, drawing on over 75 years of experience. They've applied that knowledge to this set of 8 pistons, specifically for the 400 SBC engine. These aren't just off-the-shelf parts; they're engineered and forged right here in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines pushed to their limits. This means you're getting pistons built to handle serious performance demands.

What sets these pistons apart is their design, tailored for each specific engine and racing application to balance durability with performance. You'll find features like the 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 in the process. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to prevent ring flutter and improve ring seal for consistent power delivery. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

This set includes 8 pistons, each designed for a 4.125 inch bore with a dome top, a 1.250 inch compression distance, and a 0.927 inch pin diameter. They are made 100% in the USA, ensuring you're getting a product crafted with meticulous attention to detail. Please note that these pistons are not CARB approved and cannot be shipped to California.