JE Pistons 400 Small Block 23 Degree Dome Pistons 182056L

Name: JE Pistons 400 Small Block 23 Degree Dome Pistons
Brand: JE Pistons
SKU: JEP-182056L
Price: 209.99 USD
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Part Number: JEP-182056L

$209.99

JE Pistons 400 Small Block 23 Degree Dome Pistons

Piston, 23 Degree, Forged, Dome, 2-Valve Reliefs, 4.155 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Left, Each
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JE Pistons 400 Small Block 23 Degree Dome Pistons 182056L

JEP-182056L

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Part Number: JEP-182056L

Estimated Ship Date: Nov 9, 2026

$209.99

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Overview

Brand:

JE Pistons

Manufacturer's Part Number:

182056L

Part Type:

Pistons

Product Line:

JE Pistons 400 Small Block 23 Degree Dome Pistons

Summit Racing Part Number:

JEP-182056L

UPC:

193564191038

Piston Rings Included:

Bore (in.):

4.155 in.

Bore (mm):

105.537mm

Stroke:

3.750 in.

Engine Stroke Type:

Stock

Actual Engine Displacement:

6.7L/407

Rod Length:

6.000 in.

Piston Style:

Dome, with two valve reliefs

Piston Material:

Forged aluminum

Compression Height (in.):

1.125 in.

Dome Height (in.):

0.165 in.

Piston Head Volume (cc):

-5.60cc

Wrist Pin Style:

Press-fit or floating

Wrist Pin Retainers Included:

Yes

Wrist Pin Included:

Yes

Pin Diameter (in.):

0.927 in.

Piston Ring Thickness:

0.064 in. x 0.064 in. x 0.218 in.

File Fit:

Gapless:

Top Ring Thickness:

0.064 in.

Second Ring Thickness:

0.064 in.

Oil Ring Thickness:

0.218 in.

Remanufactured:

Quantity:

Sold individually.

Notes:

Designed to fit left exhaust valve orientation with 20/30 valve spacing. Oil rail support included.

JE Pistons 400 Small Block 23 Degree Dome Pistons

JE Pistons offers 400 small block 23-degree dome top pistons for a wide range of applications, including many Chevy vehicles from 1967 and up. These single replacements are forged using 2618 aluminum, yielding high tensile strength needed for high-demand performance. The pistons are designed specifically for each engine.

Additional details:

* Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
* Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
* Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power

As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for domestic applications. JE pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From dirt track to drag strip, JE Pistons' performance is proven in victory lane time and time again.