JE Pistons 400 Small Block 23 Degree Flat Top 181938L Pistons, Single - SBC FLAT TOP
JE Pistons 400 Small Block 23 Degree Flat Top 181938L Pistons, Single - SBC FLAT TOP
A$505.15
Special Order. Contact for ETA.
This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
We accept
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:05:58
Features
Note for Pistons, Rings, Rotors, Rods and engine internals
Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.
(keyword: pistons)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | JE Pistons |
| StreetFX SKU | jep181938L |
| SFX Item ID | 4800208 |
| Accounting SKU | jep-181938L |
| Manufacturer SKU | 181938L |
| Manufacturer UPC | 193564192837 |
| Alternative References | 181938L, JEP-181938L |
Pistons, Single - 400 SBC FLAT TOP
JE Pistons offers 400 small block 23-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.
| Product Attributes | |
|---|---|
| Brand | JE Pistons |
| Manufacturer's Part Number | 181938L |
| Part Type | Pistons |
| Product Line | JE Pistons 400 Small Block 23 Degree Flat Top Pistons |
| UPC | 193564192837 |
| Piston Rings Included | No |
| Bore (in.) | 4.125 in. |
| Bore (mm) | 104.775mm |
| Stroke | 3.750 in. |
| Engine Stroke Type | Stock |
| Actual Engine Displacement | 6.6L/401 |
| Rod Length | 6.000 in. |
| Piston Style | Flat top, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.125 in. |
| Piston Head Volume (cc) | +4.30cc |
| 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 | No |
| Gapless | No |
| Top Ring Thickness | 0.064 in. |
| Second Ring Thickness | 0.064 in. |
| Oil Ring Thickness | 0.218 in. |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Designed to fit left exhaust valve orientation with 20/30 valve spacing. Oil rail support included. |
Compatibility
Loading compatibility information...
Keep shopping
More from JE Pistons
