What is the compression distance and dome volume for these pistons?

These pistons have a 1.125-inch compression distance and a 2.50 cc dome volume. This is important for achieving the correct compression ratio with your cylinder heads.

Are these pistons suitable for a street-driven vehicle?

These pistons are forged from 2618 aluminum and feature designs like FSR and skirt coatings aimed at performance and durability in high-demand applications. While they can be used in street builds, they are primarily intended for performance engines.

What does '18 Degree' refer to in the product name?

The '18 Degree' refers to the angle of the cylinder head's combustion chamber intake valve pocket. These pistons are designed with a dome shape that complements 18-degree cylinder heads for optimal performance.

JE Pistons 400 SBC Dome 18 Degree Piston Set 213120

Name: JE Pistons 400 SBC DOME 18DEG Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-dome-18deg-set-of-8-pistons-t14-295447
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 400 SBC DOME 18DEG 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 18DEG Set of 8 Pistons. Forged in the USA for high-demand performance applications.

Key Features

Fits 400 small block Chevy engines.
Forged in the USA from 2618 aluminum for high tensile strength.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Includes accumulator groove (depending on application) to improve ring seal.
Skirt coating (depending on application) reduces friction, wear, and noise.
Dome pistons designed for 18-degree cylinder head applications.

This piston set is designed for 400 small block Chevy engines. Check manufacturer specifications for full compatibility details.

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Product Details

If you're rebuilding a 400 small block Chevy engine for serious performance, a strong set of pistons is where you start. These JE Pistons are forged from 2618 aluminum, a material known for its high tensile strength, making them well-suited for high-demand applications where durability and consistent power are critical. They are designed specifically for the 400 SBC engine, ensuring they work with your build.

JE Pistons has been making forged pistons for a long time, and they build these right here in the USA. They use a proprietary Forged Side Relief (FSR) design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight too. Depending on the specific application, these pistons might also feature an accumulator groove to help control combustion gas pressure, improving ring seal and reducing flutter. Some applications also include a skirt coating that further reduces friction and noise while protecting the cylinder walls.

This set includes eight pistons, each with a dome designed for an 18-degree cylinder head application, a 4.135-inch bore, and a 0.927-inch pin. They are designed to work with a 1.125-inch compression distance and have a 2.50 cc volume dome. Please note that these pistons are not CARB approved and cannot be shipped to California.