

Specifications
- Brand
- JE Pistons
- Part #
- 181957L
- UPC
- 193564193483

JE Pistons 400-18 SBC Flat Top Piston - SINGLE - Left
$205.41
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JE Pistons 400-18 SBC Flat Top Piston - SINGLE - Left. Forged in the USA from 2618 aluminum for high-demand performance.
Key Features
- Fits Chevrolet Small Block 400 engines with a 4.125 inch bore and 18-degree cylinder head angle.
- Forged in the USA from 2618 aluminum for high tensile strength in performance applications.
- Flat top piston design.
- Features a proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
- May include a skirt coating to reduce friction and wear, and quiet operation.
- May include an accumulator groove to improve ring seal and consistent power.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
JE Pistons has been making forged racing pistons for over 75 years, and they're known for building parts that hold up under tough conditions. This particular piston is a flat-top design for a Chevrolet Small Block 400 engine with a 4.125-inch bore. It's built for performance applications where durability is key.
This piston is forged in the USA from 2618 aluminum, which gives it the strong tensile strength needed for high-demand use. JE designs each piston specifically for its intended engine and application, aiming for a good balance of performance and longevity. Features like the proprietary Forged Side Relief (FSR) design help minimize friction and power loss, and some applications may include a skirt coating to further reduce friction and wear, while also quieting down operation. An accumulator groove can also be present to help reduce combustion gas pressure, improving ring seal for consistent power delivery.
This is a single, left-side piston. Remember that this part is not CARB approved and cannot be shipped to California.
Specifications
- Brand
- JE Pistons
- Manufacturer Part #
- 181957L
- UPC
- 193564193483
Frequently Asked Questions
JE Pistons 400-18 SBC Flat Top Piston - SINGLE - Left
