What material are these pistons made from?

These pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is crucial for high-demand performance applications.

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

The FSR design minimizes friction and power loss by reducing the piston skirt width. It also utilizes a shorter wrist pin to save additional weight, contributing to overall engine performance.

Are these pistons legal for use in California?

No, this piston set is not CARB approved and cannot be shipped to California due to emissions regulations.

JE Pistons 400 SBC Dome Piston Set - 170763

Name: JE Pistons 400 SBC DOME -12 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-dome-12-set-of-8-pistons-t14-295197
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 400 SBC DOME -12 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 400 SBC DOME -12 Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Fits 400 SBC engines with a 4.155-inch bore.
Set includes 8 forged pistons with a -12cc dome volume.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design to minimize friction and save weight.
May include an accumulator groove to improve ring seal and reduce flutter.
Optional skirt coating reduces friction, wear, and noise.

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Product Details

JE Pistons is known for leading the forged racing piston market, bringing over 75 years of experience to their wide range of pistons for domestic engines. This set of 8 forged pistons is specifically designed for the 400 SBC engine, offering a dome shape with a -12cc volume. They are engineered, forged, and machined entirely in the USA, using 2618 aluminum, which provides the high tensile strength necessary for demanding performance applications.

These pistons feature JE Pistons' proprietary Forged Side Relief (FSR) design. This advanced forging minimizes friction and power loss by reducing skirt width and uses a shorter wrist pin to save additional 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 delivery. Some applications also benefit from a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, while also lowering operating noise. Each piston is designed for its specific engine and use, aiming for an optimized balance of performance and durability.

This piston set is designed for a 4.155-inch bore and includes a 0.927-inch pin. Please note that this part is not CARB approved and cannot be shipped to California. It is important to consult the manufacturer's installation instructions for proper fitment and assembly procedures.