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JE Pistons GM LS1 FT 6.125in Rod 3.905in Bore -2cc Dish - Set of 8

SKU: JEP321244

Engine Piston Kit

JE Piston Sets -8 Cyl...

JE Pistons GM LS1 FT 6.125in Rod 3.905in Bore -2cc Dish - Set of 8

SKU: JEP321244

Engine Piston Kit

JE Piston Sets -8 Cyl...

A$1,420.75
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 GM LS1 FT 6.125in Rod 3.905in Bore -2cc Dish - Set of 8

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 GM LS Gen III/IV 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

3.905 in. Bore - 1.315 CD - (-2.0 cc) - Flat Top - 8 Cyl. Piston Kit

Part Type

Engine Piston Kit

Data: v4.2 - Upd: 2026-11-09 08:04:49

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 GM LS Gen III/IV Engines To provide optimized performance durability
  • 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 03:58:33

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 jep321244
SFX Item ID 4358761
Accounting SKU jep-321244
Manufacturer SKU 321244
Manufacturer UPC 321244
Alternative References 321244

Manufacturer Attributes
Wrist Pin Wall Thickness 0.150
Wrist Pin Outer Diameter 0.927
Compression Height 1.315
Wrist Pin Length 2.250
Piston Material 2618
Bore Diameter 3.905
Piston Average Weight 436
Piston Quantity 8
Industry Automotive
Make Chevrolet
Make - Web Chevrolet
Product Market Domestic
Oil Ring Thickness 0.1175
Top Compression Ring Thickness 0.0600
Second Compression Ring Thickness 0.0600
Piston Volume -2.00
Add-On J68008-3900-3
Product Type Engine Piston Kit
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
Oversized Yes
Piston Sub-Series LS1 Extreme Duty
Pro Seal Head Gasket GM1015-051
Ring Set - Recommended JG6008-3905
Ring Set Thickness 1.50 MM x 1.50 MM x 3.00 MM
Bore Diameter - Web 3.905 IN
Connecting Rod Length 6.125
Deck Height +.011
Engine Displacement 347
Engine Stroke 3.622
OEM Bore Diameter 3.900
Compression Ratio 9.60:1 / 72.00 CC Head
Engine - Web LS1
Engine Family LS
Engine LS1
Piston Head Type Flat
Forging Type FSR
Piston Series JE Pistons
Title JE Pistons - Chevrolet, LS Gen III/IV, 3.905 in. Bore, Piston Kit
Title - Web JE Pistons Chevrolet LS Gen III/IV Piston Kit - 3.905 in. Bore - 1.315 in. CH, -2.00 CC
Category Hierarchy Auto>JE Pistons>Piston Kits
Cylinder Head LSX/L92 12 DEG
Ring Set Included No
Oversized Amount 0.007
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
Manufacturer Designation Piston Set, 2618, Flat Top, 3.905 Bore, 1.315 CD, 0.927 Pin, Set of 8.
Product Class Engine Piston Kit
Construction/Type JE, Chevrolet, LS Gen III/IV, 3.905 in. Bore, 1.315 CD, Flat Top, 8 Cyl. Piston Kit
Vehicle Designations Chevrolet LS1
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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