What material are these JE Pistons made from?

These pistons are forged from 2618 aluminum. This alloy is chosen for its high tensile strength, which is necessary to withstand the high demands of performance and racing engines.

Are these pistons suitable for street use?

These pistons are designed for high-demand performance and racing applications. They are not CARB approved and cannot be shipped to California, indicating they are intended for off-road or competition use.

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

The FSR forging design is intended to minimize friction and power loss. It achieves this by reducing the piston skirt width and can also save weight by using a shorter wrist pin.

JE Pistons 400 SBC 18DEG FT Piston Set 243037

Name: JE Pistons 400 SBC 18DEG FT Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-18deg-ft-set-of-8-pistons-t14-295563
Price: 1052.79 USD
Availability: BackOrder

JE Pistons 400 SBC 18DEG FT Set of 8 Pistons

$1052.79

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 400 SBC 18DEG FT Set of 8 Pistons. Forged from 2618 aluminum for high-demand performance.

Key Features

Fits 400 SBC 18-degree cylinder head applications.
Set includes 8 forged pistons.
Forged from 2618 aluminum for high tensile strength and durability in performance applications.
Features a flat-top design with a 4.155-inch bore.
Includes a 0.927-inch wrist pin.
Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss.

These pistons are designed for 400 Small Block Chevy engines, specifically those utilizing 18-degree cylinder heads. They are not CARB approved and cannot be shipped to California.

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Product Details

If you're building a high-performance 400 Small Block Chevy engine, especially one with 18-degree cylinder heads, a strong set of pistons is crucial. These JE Pistons are forged from 2618 aluminum, a material known for its high tensile strength, making them well-suited for the demands of racing and high-horsepower applications. They are designed specifically for the 400 SBC engine to optimize both durability and performance.

JE Pistons brings over 75 years of experience to their forged piston designs. This set features a flat-top design with a 4.155-inch bore and includes a 1.125-inch wrist pin. Depending on the specific application, these pistons may include features like a proprietary Forged Side Relief (FSR) forging design, which helps minimize friction and reduce skirt width for weight savings. An accumulator groove can also be present to help manage combustion gas pressure, improving ring seal and maintaining consistent power. Some applications also benefit from a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

Every part of this piston set is manufactured 100% in the USA, ensuring a high level of quality control. These pistons are intended for off-road use and are not CARB approved, meaning they cannot be shipped to California. If you're looking for a solid foundation for a powerful engine build, these JE Pistons are a well-made choice.