What material are these JE Pistons made from?

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

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 on the piston assembly.

Are these pistons compatible with all 400 SBC engines?

This specific set is designed for 400 Small Block Chevy engines that utilize 18-degree cylinder heads. It's important to confirm your engine's specific configuration and head type before installation.

JE Pistons 400 SBC 18DEG FT Piston Set 243038

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-t14-295564
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 in the USA from 2618 aluminum for high-demand performance.

Key Features

Fits 400 Small Block Chevy engines with 18-degree cylinder heads.
Set includes 8 forged pistons with a 4.165-inch bore.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design to minimize friction and save weight.
Includes a flat top piston dish with a -6.00cc volume.
Uses a 1.125-inch wrist pin.

This piston set is designed for 400 Small Block Chevy engines with 18-degree cylinder heads. Check manufacturer specifications for complete compatibility details.

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Product Details

If you're building a high-performance 400 Small Block Chevy with 18-degree cylinder heads, this set of 8 forged pistons from JE Pistons is a solid choice. JE Pistons has been making top-tier forged pistons for over 75 years, and these are built to handle serious power. They're forged and machined right here in the USA using 2618 aluminum, which gives them the high tensile strength needed for demanding engine builds.

What sets these apart is the attention to detail in their design. The proprietary Forged Side Relief (FSR) forging design helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, which also saves weight. Depending on the specific application, you might also find an accumulator groove to help manage combustion gases, leading to better ring seal and consistent power. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, while also cutting down on engine noise.

These pistons are designed specifically for the 400 SBC engine and the 18-degree head configuration, ensuring they're optimized for performance and durability. This set includes pistons with a 4.165-inch bore, a -6.00cc flat top dish, and a 1.125-inch wrist pin. Keep in mind that these are not CARB approved and cannot be shipped to California.