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JE 311955 Piston Kit FSR (4.000 in. Bore, 1.340 in. CH, -5.00 CC) for GM LS Engine
This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
JE 311955 Piston Kit FSR (4.000 in. Bore, 1.340 in. CH, -5.00 CC) for GM LS Engine
Kelberg Warehouse
Auf der Struth 4
53539 Kelberg
Germany
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This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
Description JE 311955 Piston Kit FSR (4.000 in. Bore, 1.340 in. CH, -5.00 CC) for GM LS Engine
JE Pistons applies over 75 years of experience to its range of premium forged racing pistons for European, import, and sport compact applications.
Engineered, forged, and machined 100% in the USA, these pistons are Designed for each specific engine and racing application to provide durability and performance.
- Forged from 4032 aluminum for tensile strength and minimal thermal expansion
- Proprietary Forged Side Relief design minimizes friction and power loss while reducing skirt width, weight, and Wrist Pin length
- Application-dependent skirt coating reduces friction, piston skirt and cylinder Wall wear, and operating noise
- Application-dependent accumulator groove reduces combustion gas pressure and Piston Ring flutter while improving ring seal
Specifications:
- Piston Series: JE Pistons
- Cylinder Head: LS 12 DEG/15 DEG COMBO VR
- Bore Diameter: 4.000 IN
- Piston Head Type: Flat
- Compression Height: 1.340 IN
- Piston Volume: -5.00 CC
- Piston Material: 2618
- Piston Quantity: 8
- Forging Type: FSR
- Piston Average Weight: 406 GR
- Ring Set Included: No
- Top Compression Ring Thickness: 0.0480 IN
- Second Compression Ring Thickness: 0.0600 IN
- Oil Ring Thickness: 0.1175 IN
- Wrist Pin Part Number: 945-2250-15-51C
- Wrist Pin Material: 5115 Low Carbon Steel, Case Hardened
- Wrist Pin Outer Diameter: 0.945 IN
- Wrist Pin Length: 2.250 IN
- Wrist Pin Wall Thickness: 0.150 IN
- Wrist Pin Retainer Included: Yes
- Ring Set Thickness: 1.20 MM x 1.50 MM x 3.00 MM
Vehicle Compatibility:
- LS2
