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JE Pistons 400 Small Block 18 Degree Flat Top 181951R Pistons, Single - 400-18 SBC FLAT TOP

SKU: JEP181951R

Pistons

JE Pistons 400 Small Block 18 Degree Flat Top 181951R Pistons, Single - 400-18 SBC FLAT TOP

SKU: JEP181951R

Pistons
A$505.15
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

JE Pistons offers 400 small block 18-degree flat 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.

Part Type

Pistons

Data: v4.2 - Upd: 2026-10-14 11:05:05

Specifications

Product Attributes - Brand
JE Pistons
Product Attributes - Manufacturer's Part Number
181951R
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
JE Pistons 400 Small Block 18 Degree Flat Top Pistons
Product Attributes - UPC
193564193391
Product Attributes - Piston Rings Included
No
Product Attributes - Bore (in.)
4.125 in.
Product Attributes - Bore (mm)
104.775mm
Product Attributes - Stroke
4.000 in.
Product Attributes - Engine Stroke Type
Stroked
Product Attributes - Actual Engine Displacement
7.0L/428
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.)
1.000 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 right exhaust valve orientation. Oil rail support included.

Reference Information

Brand Name/s JE Pistons
StreetFX SKU jep181951R
SFX Item ID 4803237
Supplier Item Code 4803237
Manufacturer SKU 181951R
Manufacturer UPC 193564193391

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    Application NotesDesigned to fit right exhaust valve orientation. Oil rail support included.

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