JE Pistons LS7 Dome 311930L Pistons, Single - STROKER DOME
JE Pistons LS7 Dome 311930L Pistons, Single - STROKER DOME
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:09:22
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.
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Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | JE Pistons |
| StreetFX SKU | jep311930L |
| SFX Item ID | 4805732 |
| Accounting SKU | jep-311930L |
| Manufacturer SKU | 311930L |
| Manufacturer UPC | 193564209436 |
| Alternative References | 311930L, JEP-311930L |
Pistons, Single - LS7 STROKER DOME
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 100 percent machined, 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 forged pistons— JE Pistons LS7 dome pistons.
Key features:
• Forged using 2618 aluminum, yielding high-tensile strength needed for high-demand performance applications
• Designed specifically for each engine and use application to provide optimized performance durability
• 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
| Product Attributes | |
|---|---|
| Brand | JE Pistons |
| Manufacturer's Part Number | 311930L |
| Part Type | Pistons |
| Product Line | JE Pistons LS7 Dome Pistons |
| UPC | 193564209436 |
| Piston Rings Included | No |
| Bore (in.) | 4.130 in. |
| Bore (mm) | 104.902mm |
| Stroke | 4.100 in. |
| Engine Stroke Type | Stroked |
| Actual Engine Displacement | 7.2L/439 |
| Rod Length | 6.125 in. |
| Piston Style | Dome, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.065 in. |
| Piston Head Volume (cc) | -1.10cc |
| 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 | 0.047 in. x 0.059 in. x 0.118 in. |
| File Fit | No |
| Gapless | No |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Fits left side exhaust valve orientation. |
Compatibility
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