JE Pistons 321239L Pistons, Single - GM LS1 FT 6.098 ROD
JE Pistons 321239L Pistons, Single - GM LS1 FT 6.098 ROD
Description
Piston
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.
Additional Information
JE, Chevrolet, LS Gen III/IV, 3.898 in. Bore, 1.340 CD, Flat Top, Left Piston
Application Summary
Chevrolet LS1
Part Type
Engine Piston
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
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:08:26
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 | jep321239L |
| SFX Item ID | 4803955 |
| Accounting SKU | jep-321239L |
| Manufacturer SKU | 321239L |
| Manufacturer UPC | 193564200747 |
| Alternative References | 321239L, JEP-321239L |
Pistons, Single - GM LS1 FT 6.098 ROD
| Product Attributes | |
|---|---|
| Brand | JE Pistons |
| Manufacturer's Part Number | 321239L |
| Part Type | Pistons |
| UPC | 193564200747 |
| Piston Rings Included | No |
| Bore (in.) | 3.898 in. |
| Bore (mm) | 99.001mm |
| Stroke | 3.622 in. |
| Engine Stroke Type | Stock |
| Actual Engine Displacement | 5.7L/346 |
| Rod Length | 6.098 in. |
| Piston Style | Flat top, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.340 in. |
| Piston Head Volume (cc) | +2.00cc |
| Wrist Pin Style | Press-fit or floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in.) | 0.945 in. |
| Piston Ring Thickness | 1.50mm x 1.50mm x 3.00mm |
| File Fit | No |
| Gapless | No |
| Top Ring Thickness | 1.5mm |
| Second Ring Thickness | 1.5mm |
| Oil Ring Thickness | 3.0mm |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | For the left side of the engine. Made from 2618 alloy forged aluminum. |
| Special Attention | Designed to work with LSX/L92 12-degree cylinder heads. |
Compatibility
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