JE Pistons 400-18 SBC Flat Top Piston - SINGLE - Left

SKU: JEP181957L

Pistons

JE Single Pistons...

JE Pistons

JE Pistons 400-18 SBC Flat Top Piston - SINGLE - Left

SKU: JEP181957L

Pistons

JE Single Pistons...

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Description

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. Engineered, forged and machined 100% in the USA, 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. Equip your engine with the best in forged pistons.

Application Summary

Chevrolet Small Block 400 - 18 Deg

Part Type

Engine Piston

Data: v4.2 - Upd: 2026-10-13 21:37:09

Features

Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applicationsDesigned specifically for each engine and use application to provide optimized performance durabilityProprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pinSkirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noiseAccumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent powerMade 100% in the USA

Specifications

Product Attributes - Brand: JE Pistons
Product Attributes - Manufacturer's Part Number: 181957L
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: JE Pistons 400 Small Block 18 Degree Flat Top Pistons
Product Attributes - UPC: 193564193483
Product Attributes - Piston Rings Included: No
Product Attributes - Bore (in.): 4.125 in.
Product Attributes - Bore (mm): 104.775mm
Product Attributes - Stroke: 3.875 in.
Product Attributes - Engine Stroke Type: Stroked
Product Attributes - Actual Engine Displacement: 6.8L/414
Product Attributes - Rod Length: 6.000 in.
Product Attributes - Piston Style: Flat top, with two valve reliefs
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Compression Height (in.): 1.062 in.
Product Attributes - Piston Head Volume (cc): +5.90cc
Product Attributes - Wrist Pin Style: Press-fit or floating
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Wrist Pin Included: Yes
Product Attributes - Pin Diameter (in.): 0.927 in.
Product Attributes - Piston Ring Thickness: 0.064 in. x 0.064 in. x 0.218 in.
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Top Ring Thickness: 0.064 in.
Product Attributes - Second Ring Thickness: 0.064 in.
Product Attributes - Oil Ring Thickness: 0.218 in.
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Designed to fit left exhaust valve orientation. Oil rail support included.