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JE Pistons LS ASYM FT 6098OEM Set of 8 Pistons

SKU: JEP311955

Engine Piston Kit

JE Piston Sets -8 Cyl...

JE Pistons LS ASYM FT 6098OEM Set of 8 Pistons

SKU: JEP311955

Engine Piston Kit

JE Piston Sets -8 Cyl...

A$2,147.22
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.

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Description

JE Pistons LS ASYM FT 6098OEM Set of 8 Pistons

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 LSX 12 and 15 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

Additional Information

4.000 in. Bore - 1.340 CD - (-5.00 cc) - 8 Cyl. Piston Kit

Part Type

Engine Piston Kit

Data: v4.2 - Upd: 2026-11-09 07:38:09

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.
  • Designed specifically for LSX 12 and 15 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
  • Skirt Coat: Skirt Coat reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:00:21

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 jep311955
SFX Item ID 4359818
Accounting SKU jep-311955
Manufacturer SKU 311955
Manufacturer UPC 311955
Alternative References 311955

Manufacturer Attributes
Add-On 945-073-MW
Bore Diameter - Web 4.000 IN
Bore Diameter 4.000
Compression Height 1.340
Compression Ratio 9.90:1 / 70.00 CC Head
Connecting Rod Length 6.098
Cylinder Head LS 12 DEG/15 DEG COMBO VR
Deck Height 9.240
Engine - Web LS2
Engine Displacement 364
Engine Family LS
Engine Stroke 3.622
Engine Type ICE
Engine LS2
Forging Type FSR
Industry Automotive
Make - Web Chevrolet
Make Chevrolet
OEM Bore Diameter 4.000
Oil Ring Thickness 0.1175
Out of Stock Message Please Allow Approximately 3 Weeks or Less for Shipping
Oversized No
Piston Average Weight 406
Piston Head Type Flat
Piston Material 2618
Piston Quantity 8
Piston Series JE Pistons
Piston Sub-Series LS Flat Top
Piston Volume -5.00
Pro Seal Head Gasket GM1016-051
Product Market Domestic
Product Type Engine Piston Kit
Ring Set - Recommended JG3108-4000-7
Ring Set Included No
Ring Set Thickness 1.20 MM x 1.50 MM x 3.00 MM
Second Compression Ring Thickness 0.0600
Title - Web JE Pistons Chevrolet LS Gen III/IV Piston Kit - 4.000 in. Bore - 1.340 in. CH, -5.00 CC
Title JE Pistons - Chevrolet, LS Gen III/IV, 4.000 in. Bore, Piston Kit
Top Compression Ring Thickness 0.0480
Wrist Pin Length 2.250
Wrist Pin Material 5115 Low Carbon Steel, Case Hardened
Wrist Pin Outer Diameter 0.945
Wrist Pin Wall Thickness 0.150
Oversized Amount Standard
Wrist Pin Included Yes
Wrist Pin Part Number 945-2250-15-51C
Wrist Pin Retainer Included Yes
Wrist Pin Retainer Part Number 927-073-MW
Category Hierarchy Auto>JE Pistons>Piston Kits
Manufacturer Designation Piston Set, 2618, Flat Top, 4.000 Bore, 1.340 CD, 0.945 Pin, Set of 8.
Product Class Engine Piston Kit
Construction/Type JE, Chevrolet, LS Gen III/IV, 4.000 in. Bore, 1.340 CD, Flat Top, 8 Cyl. Piston Kit
Vehicle Designations Chevrolet LS
Product Outline <ul><li>Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications</li><li>Designed specifically for each engine and use application to provide optimized performance durability</li><li>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</li><li>Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise</li><li>Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power</li><li>Made 100% in the USA</li></ul>
Vehicle Brief JE Pistons, Piston Kit
Market Description 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.

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