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.
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Designed specifically for each engine and use application to provide optimized performance durability
- 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
- Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
- Made 100% in the USA
Attributes:
- Brand Name: JE Pistons
- GTIN: 00193564039637
- Add-On: 927-073-MW
- Bore Diameter: 4.130
- Bore Diameter - Web: 4.130 IN
- Compression Height: 1.065
- Compression Ratio: 9.00:1 / 70.00 CC Head
- Connecting Rod Length: 6.125
- Cylinder Head: GM LS7 / LSX 12 DEG
- Deck Height: 9.240
- Engine: LS7
- Engine - Web: LS7
- Engine Displacement: 439
- Engine Family: LS
- Engine Stroke: 4.100
- Engine Type: ICE
- Forging Type: FSR
- Industry: Automotive
- Make: Chevrolet
- Make - Web: Chevrolet
- OEM Bore Diameter: 4.125
- Oil Ring Thickness: 0.149
- Out of Stock Message: Please Allow Approximately 3 Weeks or Less for Shipping
- Oversized: Yes
- Oversized Amount: 0.005
- Piston Average Weight: 419
- Piston Head Type: Dish
- Piston Material: 2618
- Piston Quantity: 8
- Piston Series: JE Pistons
- Piston Sub-Series: LS7 Inverted Dome
- Piston Volume: -33.00
- Pro Seal Head Gasket: GM1021-051
- Product Market: Domestic
- Product Type: Engine Piston Kit
- Ring Set - Recommended: JG31F8-4135-2
- Ring Set Included: No
- Ring Set Thickness: 1.20 MM x 1.50 MM x 3.00 MM
- Second Compression Ring Thickness: 0.0600
- Top Compression Ring Thickness: 0.0480
- Wrist Pin Included: Yes
- Wrist Pin Length: 2.250
- Wrist Pin Material: 5115 Low Carbon Steel, Case Hardened
- Wrist Pin Outer Diameter: 0.927
- Wrist Pin Part Number: 927-2250-17-51C
- Wrist Pin Retainer Included: Yes
- Wrist Pin Retainer Part Number: 927-073-MW
- Wrist Pin Wall Thickness: 0.170
Extended Information:
- Country of Origin: US
- Emissions : Racing or Pre-Emissions Use Only
- Life Cycle Status: Available To Order
Packing Information:
- Quantity of Each: 1
- Package UOM: EA
- Dimension: 26.000 x 12.000 x 6.000 inches
- Weight: 13.400 lb
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Shipping + Returns Shipping Policy We aim to provide a seamless shipping experience, ensuring your order arrives on time and in perfect condition. Orders are typically processed within 1-2 business days, and shipping times vary based on your location. You will receive a tracking number as soon as your order is dispatched. We offer both standard and expedited shipping options. Please note, delivery times may be affected by holidays or high demand periods. International Shipping For international orders, shipping costs and delivery times will depend on the destination. Additional customs fees may apply, which are the responsibility of the customer. Returns Policy We want you to be completely satisfied with your purchase. If you need to return an item, please contact us within 30 days of receiving it. To be eligible for a return, items must be unused, in original condition, and with all tags attached. How to Initiate a Return To start a return, contact our customer support team with your order number and reason for return. Once approved, we’ll provide instructions on how and where to send your package. Please note that return shipping costs are the responsibility of the customer, unless the item was damaged or incorrect upon arrival. Refunds Once we receive your returned item, our team will inspect it and process your refund. You’ll receive a confirmation email once your refund is complete, typically within 5-7 business days.