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

The FSR design helps minimize friction and power loss by using a reduced skirt width. This design, combined with a shorter wrist pin, also contributes to saving weight in the rotating assembly.

Are these pistons compatible with all SBC engines?

These pistons are specifically designed for the SBC engine platform and feature a 4.140 inch bore. It is always recommended to verify compatibility with your specific engine build and specifications before installation.

What does the dome volume and pin size mean for my build?

The 3.00 cc dome volume contributes to the compression ratio of your engine, which affects power and performance. The 0.927 inch pin size is the standard diameter for the wrist pin that connects the piston to the connecting rod.

JE Pistons SBC .150 Dome Piston Set 186446

Name: JE Pistons 400-12 SBC .150 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-12-sbc-150-dome-set-of-8-pistons-t14-295360
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 400-12 SBC .150 DOME 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 400-12 SBC .150 DOME Set of 8 Pistons. Forged 2618 aluminum for high-demand performance.

Key Features

Fits small-block Chevy (SBC) engines with a 4.140 inch bore.
Set includes eight forged pistons, each made from 2618 aluminum for high tensile strength.
Features JE Pistons' proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes a 3.00 cc dome volume and 0.927 inch wrist pins.
Pistons are forged and machined 100% in the USA.
May include an accumulator groove to improve ring seal and reduce ring flutter.

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Product Details

If you're building a high-performance small-block Chevy (SBC) engine, you need pistons that can handle the stress and deliver power reliably. This set of eight JE Pistons is forged from 2618 aluminum, a material chosen for its high tensile strength, making it well-suited for demanding performance applications where durability is just as important as power output. These pistons are designed specifically for the SBC engine, ensuring they work with your build.

JE Pistons brings over 75 years of experience to these components, with each piston forged and machined entirely in the USA. They feature a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width. This design, along with a shorter wrist pin, also contributes to saving weight. Depending on the specific application, these pistons may also include an accumulator groove to help manage combustion gas pressure, reducing ring flutter and improving ring seal for consistent power delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise.

This set is for a 4.140-inch bore with a 3.00 cc dome volume and includes 0.927-inch pins. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For a serious SBC build, these JE Pistons offer a well-built foundation for significant power.