JE Pistons 400 SBC DOME 18DEG Set of 8 Pistons

SKU: JEP213118

Pistons

JE Piston Sets -8 Cyl

JE Pistons

JE Pistons 400 SBC DOME 18DEG Set of 8 Pistons

SKU: JEP213118

Pistons

JE Piston Sets -8 Cyl

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Description

JE Auto forged pistons from JE Pistons are the result of over 75 years of industry leading experience extended to our range of premium forged pistons for Chevrolet Small Block 18 Degree Engines. JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons’ performance is proven in victory lane time and time again. Equipped with the following custom level features

Application Summary

Chevrolet Small Block 400

Part Type

Engine Piston Kit

Data: v4.2 - Upd: 2026-09-29 05:58:20

Features

Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
Contact Reduction: Reduce the amount of contact area against the cylinder wall when the piston "Rocks over". Contact reduction also serves to disrupt the flame travel into the crevice area causing a reduction in detonation.
Designed specifically for Chevrolet Small Block 18 Degree Engines. To provide optimized performance durability
Double Pin Oilers: Deliver twice the amount of oil to the wrist pin as compared to the standard single pin oiler.
Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
Includes high-quality wrist pins, and locks
Made 100% in the USA
Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from .0003 to .0010 between the wrist pin and pin bore.
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
Smooth Crown Finish: Deburs all areas around the valve pocket and dome area, to reduces stress risers and prevent hot spots.

Specifications

Product Attributes - Brand: JE Pistons
Product Attributes - Manufacturer's Part Number: 213118
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: JE Pistons 400 Small Block 18 Degree Dome Pistons
Product Attributes - UPC: 193564030696
Product Attributes - Piston Rings Included: No
Product Attributes - Bore (in.): 4.125 in.
Product Attributes - Bore (mm): 104.775mm
Product Attributes - Stroke: 3.750 in.
Product Attributes - Rod Length: 6.000 in.
Product Attributes - Piston Style: Dome, with two valve reliefs
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Compression Height (in.): 1.125 in.
Product Attributes - Piston Head Volume (cc): -2.50cc
Product Attributes - Wrist Pin Style: Press-fit or floating
Product Attributes - Wrist Pin Retainers Included: No
Product Attributes - Wrist Pin Included: Yes
Product Attributes - Pin Diameter (in.): 0.927 in.
Product Attributes - Piston Ring Thickness: 1/16 in. x 1/16 in. x 3/16 in.
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Specify left or right hand piston. Oil rail support included. Solid dome design.

Reference Information

Brand Name/s	JE Pistons
StreetFX SKU	jep213118
SFX Item ID	4359189
Supplier Item Code	4359189
Manufacturer SKU	213118
Manufacturer UPC	N/A
Alternative References	18DEG