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JE Pistons LS ASYM FT 4.000STRK Set of 8 Pistons

SKU: JEP311986

Engine Piston Kit

JE Piston Sets -8 Cyl...

JE Pistons LS ASYM FT 4.000STRK Set of 8 Pistons

SKU: JEP311986

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 4.000STRK Set of 8 Pistons

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

4.130 in. Bore - 1.115 CD - (-5.00 cc) - 8 Cyl. Piston Kit

Part Type

Engine Piston Kit

Data: v4.2 - Upd: 2026-11-09 07:35:05

Features

  • Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
  • Designed specifically for each engine and use application to provide optimized performance durability
  • Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
  • Made 100% in the USA
  • 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

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:00:23

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 jep311986
SFX Item ID 4359841
Accounting SKU jep-311986
Manufacturer SKU 311986
Manufacturer UPC 311986
Alternative References 311986

Manufacturer Attributes
Add-On 927-073-MW
Piston Volume -5.00
Top Compression Ring Thickness 0.0480
Second Compression Ring Thickness 0.0600
Oil Ring Thickness 0.149
Wrist Pin Wall Thickness 0.150
Wrist Pin Outer Diameter 0.927
Compression Height 1.115
Wrist Pin Length 2.250
Piston Material 2618
Bore Diameter 4.130
Piston Average Weight 415
Piston Quantity 8
Industry Automotive
Make Chevrolet
Make - Web Chevrolet
Product Market Domestic
Product Type Engine Piston Kit
Piston Head Type Flat
Forging Type FSR
Piston Series JE Pistons
Title JE Pistons - Chevrolet, LS Gen III/IV, 4.130 in. Bore, Piston Kit
Title - Web JE Pistons Chevrolet LS Gen III/IV Piston Kit - 4.130 in. Bore - 1.115 in. CH, -5.00 CC
Cylinder Head LS 12 DEG/15 DEG COMBO VR
Ring Set Included No
Engine Type ICE
Wrist Pin Material 5115 Low Carbon Steel, Case Hardened
Out of Stock Message Please Allow Approximately 3 Weeks or Less for Shipping
Bore Diameter - Web 4.130 IN
Connecting Rod Length 6.125
Deck Height 9.240
Engine Displacement 429
Engine Stroke 4.000
OEM Bore Diameter 4.125
Oversized Yes
Piston Sub-Series LS Flat Top
Pro Seal Head Gasket GM1005-051
Ring Set - Recommended JG31F8-4135-2
Ring Set Thickness 1.20 MM x 1.50 MM x 3.00 MM
Compression Ratio 11.40:1 / 70.00 CC Head
Engine - Web LS7
Engine Family LS
Engine LS7
Oversized Amount 0.005
Wrist Pin Included Yes
Wrist Pin Part Number 927-2250-15-51C
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, 4.130 Bore, 1.115 CD, 0.927 Pin, Set of 8.
Product Class Engine Piston Kit
Construction/Type JE, Chevrolet, LS Gen III/IV, 4.130 in. Bore, 1.115 CD, Flat Top, 8 Cyl. Piston Kit
Vehicle Designations Chevrolet LS Stroker
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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